For a couple seeking to get pregnant and give birth to the baby, each latency of menstruation is an exciting moment. But not the onset of monthly menstrual bleeding at a time limit is not a reliable sign of conception. The delay may indicate a hormonal failure in the body of a woman.
To date, the occurrence of pregnancy is determined using several reliable ways: pharmacy test, ultrasound, determination in the blood of the HCG or hormone of the human chorionic gonadotropin.
Ways to confirm the occurrence of pregnancy
Most pharmacy tests for determining pregnancy at home are intended for use already on the first day of the delay of menstruation. However, do not forget about the different degrees of the reliability of the results. To reasons affecting accuracy, include:
- Quality level. Unfortunately, there are manufacturers that do not differ in high quality goods.
- Menstruation delay day. You can define pregnancy on any day, but in the first days of delay, the error of the results is marked more often.
- The period of day in which testing is carried out. The most optimal time of the day for the procedure is morning.
- Not compliance with the recommendations for the implementation of the procedure.
To determine pregnancy, it is not necessary to use the test immediately after sexual contact, but only days after 10-14. Such specific procedures can be explained simply: the production of hormone, which indicates conception, begins only after the fertilized egg reaches the uterus and securely secure there .
Modern pregnancy tests work with the hormone indicator hgch, which appears in the urine of a pregnant woman. Test is worth not less than two weeks after the intended conception, because before this hormone level is too low. Usually when testing in the early deadlines, the appearance of the second strip is barely noticeable. If all the long-awaited two strips appeared, then this is 99% confirmation of pregnancy, but a negative result needs to be risen.
Hormone, indicating the successful fertilization of the egg and attaching it to the wall of the uterus, is called hgch or chorionic human gonadotropin. The level of hCG is preferably determined several times, that is, it is recommended to carry out a laboratory test of blood to obtain reliable results.
Most female representatives consider the most reliable way to determine the successful conception of ultrasound research. However, this diagnostic technique is not flawless, and in some cases the data is not always reliable. Therefore, the combination of diagnostic techniques is often used: combine a transvaginal study with the determination of the hormone level of the HCG in the blood of a woman.
Optimum time to determine pregnancy with ultrasound
For the most accurate results, ultrasound research is recommended not to hold on the earliest. Gynecologists, based on their experience, appoint an ultrasound procedure no earlier than 3 weeks after the first day of delay. This period is considered to be the most suitable for reliable determination of the presence of a fetal egg and even for fixing the first cuts of the heart muscle of the embryo.
Sometimes, during ultrasound, pathology is visible, called anambridge. This state is when the uterus is determined by the presence of an empty fetal egg, i.e. There is only a fruit sheath, and the embryo is not inside.
To see the fact of pregnancy, the doctor will be able to at ultrasound. However, too early ultrasound will not be infusable: to confirm or refutate the presence of an embryo must pass at least 3 weeks from the moment of the last menstruation delay Ultrasound diagnostics to confirm pregnancy
To diagnose pregnancy in the earliest periods, the most frequently used and informative method is the ultrasound technique. Using Uz-survey, the specialist establishes the existence of a fertilized egg and determines its location in the uterus.
Sometimes there are situations where the results of home testing and ultrasound studies do not coincide. What is the conditional and how is explained? There are some factors that suggest the development of such a situation. According to statistical data, cases where the positive test result is combined with the lack of a fruit egg on the ultrasound, a lot.
In this connection, the positive test results do not coincide with the data of the ultrasound?
There are several reasons that may be in the actual absence of an embryo in the ultrasound results to show a positive test. Often the edema of the mucous membranes of the uterus caused by inflammatory processes does not allow to determine the presence of an embryo in early terms. The non-standard form of childbearing authorities is the reason for the difficult diagnosis of conception. Women with such anatomical features often, pregnancy is often not visible until later than the deadlines.
Incomponsible diagnostic ultrasound devices give a high error in the results. Wrong testimony of equipment prevent specialist to see the embryo. Only a highly qualified specialist of the gynecological department, which is engaged in examining pregnant women can carry out the ultrasound procedure. The degree of skolog qualification is of great importance and significantly affects the accuracy of the research results. Only the doctor is engaged in deciphering data and images.
There are situations where the fruit egg is confused with a miomer of the uterus, or as a result of a medical error, the embryo does not detect at all. In addition, there are still significant reasons for which a fruit egg is found on the ultrasound.
Early gestation
There are excellent quality tests with a high degree of sensitivity that are designed for use in a week after the alleged conception and certainly give an accurate result. While far from all ultrasound diagnostic specialists will be able to see the presence of an embryo on such a small period. And at the moment, modern equipment is not always used in diagnostic cabinets. In the event that, besides the delay of monthly other signs, there is no conception, it is necessary to undergo a general gynecological examination and pass the blood to the definition of hormone hgch.
Ectopic pregnancy
The embryo, developing outside the uterine cavity. Ultrasound does not determine the presence of a fetal egg in the uterus during ectopic pregnancy. In such cases, the embryo is not developed in the uterine cavity, but in the phallopyan pipe. This pathology requires urgent surgical intervention. A woman is preparing for surgery and conduct an immediate removal of a fetal egg, often with a pipe. With untimely diagnostics, the uterine tube bursts, and a fatal exodus is possible. Exact confirmation or refutation of ectopic pregnancy is obtained using laparoscopy procedure, based on the data obtained, a decision is made on further medical tactics.
If a woman has an ectopic pregnancy, the doctor will also not be able to see the fruit on the ultrasound, because initially only the uterine cavity is checked. Such pathology is a direct indication for urgent surgery Failure to comply with instructions
Failure to comply with testing instructions at home. It also comes across the quality products of pharmacological companies. However, the French representatives themselves often neglect the sequence of the procedure. The most common errors: hold the strip in the urine less or more recommended time, or evaluate the results in an hour or two, and not after a few minutes, as indicated in the instructions. In such cases, the appearance of a second pale strip is possible. To accurately follow the recommendations of the manufacturer for conducting the procedure, and the accuracy of the result is guaranteed to you.
Pathological conditions
There are pathologies, the development of which is accompanied by the development of hormone hgch. The second strip on the pharmacy test sometimes appears not only as a consequence of conception. There may be more sources of chronic gonadotropin: various hepatic tumors, the development of pathology, called bubble skid. There are cases of the appearance of the second strip during the test even in men. At the same time, it is necessary to visit the therapist's doctor and pass the analysis to determine the HCG in the blood.
Recent miscarriage or a frozen pregnancy can give an untruthful positive result with home testing. This is considered a normal phenomenon solely for some time after a sad event.
How to behave in case of inconsistency of the results of ultrasound and test?
Experienced, caused by different results of various methods for diagnosing pregnancy, can bring harm to the state of the health of the future baby and mom. Therefore, if you encountered a situation when a positive result saw on the test, and the ultrasound did not confirm the pregnancy, the main thing is not to panic and do not take all the results with absolute trust.
It is necessary to take into account the likelihood of a possible error of the ultrasonic apparatus, as well as the possibility of medical error. It is not necessary to make speaking solutions on operational intervention when establishing a diagnosis of frozen or ectopic pregnancy, based only on the results of the ultrasound with a positive test.
On social networks, you can now find a lot of information about rude medical errors, about how a developing embryo has not been detected in mind or incompetence of a specialist. There are different situations, and fertilized eggs really attached incorrectly or died. In the event of not the detection of a fetal egg on an ultrasound, with other signs of conception, the doctor must carry out a mandatory additional examination consisting of a laboratory testing of blood for the definition of hormone hgch, holding a re-ultrasonic study on another apparatus, and possibly another sonolog.
When it comes to confirmation of pregnancy, most doctors say that you must first do the test and one. And it would be good if you did them at least every other day. But in order to be fully sure it is necessary to pass an ultrasound that can show your pregnancy, a fruit egg and place its position.
But there are such cases when hope for ultrasound does not justify himself. And it happens quite often and around the world. In such cases, the doctor who conducts the entire ultrasound procedure at different times until the thirteenth week of pregnancy cannot detect a fruit egg in the uterus. And this is despite the fact that the child has already audible heartbeat.
Women who were in such situations tell that doctors suspected an ectopic pregnancy and sent to the abortion. But they still endured and gave birth to a completely healthy child.
Therefore, it is very unpleasant to say that because of the mistresses of doctors it was possible not to be cut off. Of course, very often there are cases when the fetal egg does not reach the uterus or on the way it dies in the uterine pipes, but before making such a conclusion, it is necessary to complete a complete check in order to make sure about it.
Why does the ultrasound study show no pregnancy?
Now there are many devices, thanks to which our life becomes much easier. For example, when the Uzi and Mama apparatus was invented, and the doctors then became much easier. But despite this, even the equipment can make a mistake, especially if you consider that it is managed by a person.Although they say that the ultrasound is the most correct way to learn about pregnancy, but if you consider the errors of this equipment, it is impossible to fully believe. Indeed, mostly the results of the ultrasound will depend on how the doctor who does it is done. After all, world practice shows that there were doctors who took pregnancy for Mioma of the uterus or did not see her at all, although the fruit was already a month or two.
The cause of such situations can be the old equipment. The first devices were not able to show a pregnancy in the early stages. After all, even today, when there is much better equipment, doctors are not recommended to undergo this procedure if the menstruation delay is less than 10 days.
Although the ultrasound can be determined by pregnancy and on an earlier period, but still precisely because of this, and most cases happen when doctors do not find a fruit egg in the uterus. Also, pregnancy can not be seen when a woman has an individual structure of the uterus. In this case, the pregnancy will be visible solely in the later timing.
In any case, you do not need to configure yourself to be bad. After all, in our life the mistake is very easy. If there is an assumption that pregnancy is frozen or ectoped, then do not hurry to go to the abortion. First you need to do at least a few ultrasound from different doctors. But a more correct way will be a blood test for hCG. Of course 100 percent confidence, he also does not give, because in the laboratory, oddly well, people also work.
Therefore, it is worth it to recheck, because sometimes the smallest mistake of the doctor can stand your child's life! Do not worry and make several trips to doctors on the ultrasound. Pass all possible analyzes. And if a terrible diagnosis of ectopic pregnancy is confirmed in all cases, only then can be taken as serious steps. Because there are cases when because of the medical error, parents not only roared the innocent kid, but also lost opportunities to further have healthy children.
The appearance of stripes on pregnancy test confirms that a woman will soon become a mother.
But it happens that the results of the test and ultrasound data, conducted to confirm the conception, disagree. What tests confirm 100% pregnancy? What is the accuracy of the test? Are there any alternative ways to confirm pregnancy at home? These and other questions will be answered from our article.
What are the methods of confirmation of pregnancy?
To confirm the conception, several methods are used. This is a home test, which can be purchased in a conventional pharmacy, blood test from veins to the level of human chorionic gonadotropin, as well as ultrasound research.
These methods have varying degrees of reliability and have their own characteristics. The future mother often knows the date of conception, determining it for the term of ovulation.
The main sign of pregnancy - Amenorrhea, or the absence of menstruation, does not always talk about conception. Monthly may not begin in other, not related to the enhancement of the fetus, reasons. If there are no menstruation and there is no reason to assume pregnancy, you should not postpone a visit to the gynecologist.
Home Test
The pharmacy (it is home) test is the most popular way to which every woman resorts, involving what has become pregnant.
The essence of the dough is immersion in the morning urine strips, impregnated with a special chemical composition reacting to human chorionic gonadotropin (HCG), manifested in the urine. This hormone is produced in the body only with the onset of pregnancy or the development of serious pathologies (oncological diseases).
The mining of the hormone begins not at the moment of fertilization, and when the fertilized egg is attached to the wall of the uterus. In order for HCH to show itself with two stripes on the test, it is necessary that it has accumulated in the body. After conception, its amount comes every day in geometric progression.
Tests have different sensitivity, and also differ in the methods of application. They are divided into classic stripes impregnated with sensitive to HCG substances, tablet (the indicator is placed in the body of plastic) and inkjet. The most reliable is the inkjet. It does not require preparation and can use it anywhere.
Laboratory test of blood
This is more accurate than the domestic test. In the blood, the chorionic gonadotropin is detected earlier than its amount reaches the desired concentration in the urine, which will react the indicator strip.
You can donate blood from the vein in the laboratory by 3-5 days from the start of the delay of menstruation or for 12-14 days from the expected date of conception. Each week of pregnancy corresponds to a certain level of hormone. In the laboratory, the results of the study are presented in the form of a table of values \u200b\u200bcorresponding to each week of pregnancy.
Gynecological examination
At the inspection, the gynecologist determines the presence of a developing fetus according to the following features:
- Full-line organs of a small pelvis.After conception, the bloodstream increases in MT, why the sex lips, the vagina and the cervix change their color. They darken, become edema.
- Changing the state of the uterus.Non-empty uterus dense, has a pear shape. After conception, it becomes rounded, soft, and its dimensions increase.
- Easy excitability of the uterus.With a two-way medical examination, it is easily reduced, reacting to the actions of a specialist, then again comes to its normal state.
- Asymmetry of the uterus. One side of the organ more than another depending on which part of the embryo attachment occurred.
- Soft neck. The neck (experiencing) softens, its fabrics does not feel practically no inspection.
Signs of pregnancy, which gynecologist sees on the inspection, manifest themselves on a period of 4-7 weeks. If the estimated "interesting position" lasts less than 3 weeks, a visit to the doctor is better to postpone.
Ultrasound procedure
The ultrasound of the high-resolution ultrasound is capable of determining the pregnancy on the 5-6 day of the delay of menstruation (it corresponds to 3 weeks of extension of the fetus). Ultrasound examination on this period fixes in the uterine cavity tiny tuberculosis in size 2-4 millimeters. This is a growing embryo.
It is necessary to determine what it is: the foldometrium folds or growing germs, only by highly qualified specialist.
Confirmation of the starting period of the baby tooling by ultrasound is carried out at the request of a woman or by testimony.
Indications for Early Ultrasound:
- ectopic development of the fetus in the history of women;
- inspection of the gynecologist who has not confirmed changes in the uterus characteristic of menstruation in the absence of menstruation.
On what duration of ultrasound informative
Modern ultrasound research devices are able to fix the first signs of the toddler's vital activity on the 10th day after conception. To accurately determine whether there is a fruit egg in the uterine cavity, the study is carried out by a transvaginal method. Also, this method accurately determines exactly where the fruit was fixed: in the uterus or in one of her pipes.
Even if the woman does not tolerate to find out, she is pregnant or not to visit the Cabinet of Ultrasonic Studies will have to wait two weeks from the date of conception.
Egg fertilization is passed in the uterine tube.
During the first week of his life, the fertilized egg "gets" to the uterus and is attached to one of its walls. In the first week after conception, it will not be seen either a sensitive apparatus of Uzi, nor the most experienced and qualified specialist. By the end of the second week of the life of the egg on it appear germinal sheets, allowing the specialist to distinguish the barely noticeable tubercle on the wall from the polyp.
Modern transvaginal ultrasonic diagnostics allows you to see a fruit egg in the uterine cavity at 3 week. On 4 weeks in the egg already visible germin.
The 8-week embryo has a clearly visible torso, head and limb. Fetal heart rate is 100 ships per minute.
In 11-13 weeks, an ultrasonic diagnostic specialist can accurately determine the sex of the child, and also to evaluate how the fetus is being developed.
Why ultrasound examination does not show pregnancy - possible causes
Sometimes it happens that the woman says a doctor doing an ultrasound: "I am pregnant and I want to know the exact term," while the study does not show the presence of a fetal egg.
Possible causes of negative results of ultrasound:
- The woman incorrectly calculated the deadlines, does not know the dates of conception.
- The study was conducted "through the stomach", that is, the sensor who drives the patient from the belly. This method is not as informative as transvaginal.
- Obtaining a positive test result and the appearance of human chorionic gonadotropin in the blood is sometimes associated with pathological processes that do not have anything in common with conception and drying out the fetus.
- Ectopic attachment of the fetus. In the early deadlines of ectopic pregnancy, weakly sensitive devices do not fix the heartbeat of the kid.
- Bubbling, or impaired embryo formation, causing a trophoblastic tumor. It develops due to rustling of chorion navigated in endometrium. At the site of the rustling are formed filled with liquid bubbles. The manifestation of this disease is similar to the "interesting position", give a delay of menstruation, nausea, increased hCG.
- Home dough errors. Perhaps the reason for the unsuccessful ultrasound is not in the error of the work of the apparatus or the inexperience of the doctor. Tests often give an incorrect result.
- Fruit fetal development. It happens that the development of the fetus is spontaneously breaking, hardly time to begin. Woman making a test at home and waiting the right time, on an ultrasound examination learns that the fruit is frothing. Soon, she appears browned discharges, confirming the death of the embryo.
If pregnancy is not visible on the ultrasound (but the remaining signs are present) or there are errors of the study, it is recommended to repeat the analysis after a couple of weeks.
What to do if the ultrasound does not show pregnancy, but the test is positive - the doctor advises
With the situation when the test stubbornly shows two strips, and the ultrasound does not find a baby, many future mothers face. Seeing two strips (especially if one manifests itself clearly, and the second weak) women are more likely to go to the Cabinet of Ultrasound than in the laboratory for surrendering blood test.
Often the reason for the bad ultrasound is that women, anticipating events, are sent to the Cabinet of Ultrasonic Diagnostics, when the eggs only makes its "journey" to the uterine cavity and is not visible. In such a situation, it is necessary to calm down, gain patience and after a couple of weeks, after passing a re-examination, get the cherished result.
If there are no monthly and no other indirect signs of the coming conception (deterioration of the condition, nausea, fatigue, swelling of the chest glands), do not rush to go to the Cabinet of the Uzi Specialist.
Look out one or two weeks from the start of the delay, use multiple tests. If they all definitely say "yes", showing two dashes, continue to keep calm. It is better to wait a half or two weeks that are necessary for the embryo in order to gain a foothold in the uterine wall.
Even if the fruit is developing outside the uterus, it is probably possible to make sure that the uterine attachment of the fetus is reliably determined.
If the state of health deteriorated and a history of the future motley has already been an ectopic pregnancy, it is necessary to urgently visit the gynecologist. Under the guidance of a specialist will be able to cope with any difficulties and trouble with minimal health risks.
All purchased tests still "insist" on a positive result, and for some reason, for some reason, they distort them to re-examine them? In this case, it is necessary to examine the detection of pathologies that cause the hCG jump, and their subsequent treatment.
Do not discard the probability of low qualification specialist in ultrasonic diagnostics. It is necessary to go on an ultrasound in another place or carry it on another apparatus. In any case, it is impossible to decide on the treatment of pathologies, drug cleaning (if a frozen pregnancy is revealed), or, even more so, that there is no embrying, on the basis of only one medical conclusion.
With the slightest suspicion that the doctor of ultrasound diagnostics does not have adequate qualifications and experience, refuse to receive. Look for another specialist.
In continuation of the topic, a small video about when you need to do ultrasound to confirm the conception:
Conclusion
Modern devices are able to confirm the conception and in earlier time. But without a re-examination confirming the data obtained, the future mom still can not do.
The moment when a woman involves his pregnancy very excitement. And everyone has their own reasons. But whatever they were, I want to know as soon as possible about the result, he is positive or not. Nowadays, you can resort to many ways to determine pregnancy, these are all kinds of tests, and the analysis of hCG and even folk methods. But, probably, the most common of them is diagnosed with ultrasound.
Ultrasound Research (Ultrasound)
One of the common methods that doctors are used to determine the coming pregnancy (starting from 3-4 weeks), as well as pathologies and female diseases.There are such types of ultrasound research of small pelvis organs:
- Transrectal - done through the rectum. Conduct this procedure to girls who do not live sex life.
- Transvaginal - is carried out through the vagina in the early period of pregnancy. Provides the most accurate result.
- Transabdominal - is carried out through the front abdominal wall (abdominal bottom).
- Combined - a combination of vaginal and transabdominal ultrasound methods. Assign for complete diagnostics.
- 3D and 4D ultrasound - with the help of these two types of research you can get a realistic image of a child. And 4D will also allow, and to blame for its movements and even facial expressions in real time. Showing to clarify the state of the fetus.
Objectives ultrasound during pregnancy
The most informative way to determine the state of the future kid, almost at all stages of development is an ultrasound study. In addition, it is monitored by the development of the fetus, with the help of this method, it is also possible to understand the state of the placenta, spindlewater waters, the inner part of the uterus, to detect deviations in a timely manner and eliminate them.
Terms of passage of ultrasound during pregnancy
Three so-called screening are mandatory - from 10 to 14 weeks on the first trimester, the second trimester - from 20 to 24, and on the third trimester - from 32 to 34 weeks. In case of suspicion of possible violations, additional ultrasound studies are appointed.When you need an unscheduled ultrasound
Failures can occur throughout the entire period of pregnancy. Therefore, unscheduled ultrasound is appointed as problems or alleged failures occur. It is necessary to confirm or refute the diagnosis. In case of confirmation, it is possible to intervene in a timely manner and eliminate the problem.
Deadlines where you can learn from ultrasound to learn about pregnancy
Confirm the "Interesting Provision" in the early deadlines will help you transvaginal ultrasound. For this, a special sensor is introduced into the vagina, which dresses a condom. Transvaginal ultrasound is able to determine the fruit egg on the third week of pregnancy. During this period, the level of hCG should be higher than 1800 units.HCG (human chorionic gonadotropin) is one of the main indicators of pregnancy and its prosperous flow.
If, with such indicators, a fetal egg in the uterine cavity was found, in most cases it indicates an ectopic pregnancy. But the presence of a fetal egg does not confirm the fertilization (it can be empty). About the coming pregnancy should indicate the embryo, which is located in a fruit egg. If only a fruit egg can be seen on the third week of pregnancy, then the fifth of the obstetric week of the embryo begins to beat the heart. It is during this period that it is possible to determine the pregnancy with accuracy. When there are no weighty reasons to conduct an ultrasound in early terms, it is recommended to perform the first study for 2 weeks of delay.
Do you need an ultrasound study in early pregnancy?
As we have already spoken ultrasound at the first weeks of pregnancy, a little-informative. Therefore, without medical records (suspicion of ectopic pregnancy, bleeding, pain, problems with the onset of pregnancy, threat of miscarriage, etc.) It is not recommended to conduct it.The uterus at the moment of attaching the fetal egg should be alone. Consequently, in the early time it is not worth disturbing it with extra interventions, in order to avoid violation of the implantation process, and in the end, the interruption of pregnancy.
Are there any mistakes when determining pregnancy on ultrasound
Most often, with ultrasound examination, it may not be noted that the conception occurred. It turns out that because of too early. You should know that you can see a fruit egg in the uterus in about 5 weeks of pregnancy, that is, at 7 week of obstetric period, not earlier.Very common mistake - incorrect pregnancy. It is believed that the ultrasound can determine the most accurate period that passed from the moment of conception. And this is so if the study is held no later than 10, a maximum of 11 weeks of to wear. Later, the development of the baby occurs not evenly, therefore the size of the embryo is harder to determine the term of pregnancy.
The latter most popular ultrasound error is the wrong definition of the gender of the baby. Optimal for this is the length of toaling on the 17-20 week. Later in the stomach decreases space, umbilical ultrasound or limbs can be located between the legs of the child and thereby interfere with seeing what is the gender in the baby.
In addition to the errors mentioned, it may still be that on the ultrasound could not detect ectopic pregnancy or death of the embryo, they can also miss a genetic deviation. From this no one is insured. Any suspicion of deviation must be rechecked several times.
What to do when ultrasound does not determine pregnancy?
At a very early period, when a fruit egg is still on the floor of the Walk to the uterus, a pregnancy is impossible to fix with ultrasound. Then the analysis of blood on HCG comes to the rescue. The level of chorionic gonadotropin in the blood begins to rise gradually from the first day of conception.Ultrasound examination, today, remains informative and safe when observing pregnancy. It is not worth afraid of negative influence on the kid. The radiation is so insignificant that even frequent studies with the help of ultrasound will not affect the child's health.
Reasons due to which ultrasound does not show pregnancy
Sumber technique as well as people have the ability to make mistakes. And diagnose 100% pregnancy does not always succeed. There are cases when even the 8th or 11th week of pregnancy ultrasound does not reveal the fruit. The pregnancy itself occurs without pathologies. Often, the doctor in such cases gives direction to an abortion, suspecting an ectopic pregnancy. What are the reasons for that?- Human factor - the qualifications of the doctor and his experience;
- Gestational age. The first structural part of the fruit egg - the yolk bag can be considered when the fetal bag of 5-6 mm in size is somewhere 5 weeks, it used to go to do ultrasound simply no sense;
- The anatomical features of the structure of the uterus - an unusual form, due to which the device does not see the fruit egg (pregnancy is confirmed at later timing)
Upon the occurrence of desired pregnancy, all future mothers want to reliably make sure that the fruit egg attached to the wall of the uterus and the formation of a future baby occurs normally. The most reliable and convenient way to confirm a positive pregnancy test is considered an ultrasound study.
Despite the fact that the high-precision test strip, easily accessible in the pharmacy network, shows the onset of pregnancy, and a qualified obstetrician-gynecologist is able to recognize the symptoms of the "pregnant uterus", only the total data of the ultrasound confirm the fact of gestation. That is why, in the event that a woman believes that she managed to get pregnant, and there is no fruit egg on the ultrasound, future parents come in bewilderment.
In connection with this phenomenon, they have a question - can the diagnostics not see pregnancy on the ultrasound? In our article, we want to provide information on what time the menstruation delay period is possible to confirm the completion of the process of conception, when the ultrasonic scanner will allow the doctor to see the embryo and is it possible to ultrasound not to see the pregnancy.
How to examine future mothers?
If a pregnancy test was positive, it is possible to confirm this in an ultrasound study - diagnostics are carried out in the commercial center or in women's consultation. It is important to know that an important role in obtaining reliable survey results is played by equipment that has a high level of resolution and functionality, as well as a specialist qualification.
Up to 9 obstetric weeks for examination of pregnant women use two ways:
- Transabdominal - through the front of the front abdominal wall.
- Transducer - with a transducer, which is introduced into the vagina.
Up to 5 weeks, the formed fruit egg is very small - its size is only about two millimeters. The effective method of diagnosing the embryonic period is precisely transvaginal - its high-frequency sensor makes it possible to close as much as possible to the uterine cavity and transfer the smallest dimensions of the organs under study to the monitor screen.
Methods of examination of the future mother using high-frequency waves non-invasive and absolutely harmless - it allows the doctor to safely observe the development of the fetus
For the entire period of gestation, women perform at least three ultrasound scans. The session of the study is short-term, the doctor tries not to delay the sensor for a long time in one place, especially during the formation of the most important organs and systems of the future infant.
What do they look at an ultrasound study?
The main purpose of the ultrasound in the embryonic period is to confirm the occurrence of pregnancy, this issue is particularly relevant in the event of an extracorporeal fertilization. There are several tasks in front of the diagnosticist:
- Confirmation of fixing the fetal egg in the uterus.
- The elimination of the presence of neoplasms in the uterine cavity, which can "disguise" under pregnancy.
- Evaluation of the viability of the embryo.
- Exception of ectopic pregnancy.
- Determination of the presence of a second fetus.
- Studying the localization of the placenta and the embryo.
- Clarification of the period of gestation.
In gynecological practice there is one important point that all future mothers should know: the doctor measures the period of pregnancy in the obstetric weeks - from the first day of the last menstruation. That is why the difference between the real and obstetric period of the child's conception is two weeks. In a woman of reproductive age with a normal menstrual cycle, pregnancy recognition at a transvaginal study is happening no later than five weeks. If the loop is irregular - the definition of the exact period over the month is difficult.
What time frame for ultrasound is not visible embryo?
Signs of viable pregnancy are the following factors that captures an ultrasonic scanner:
- the presence of distinguishable outlines of the embryo in the egg;
- listening to the fetal heartbeat;
- fixing the slightest movements of the embryo.
Each woman has a period of toaling the child proceeds individually and say for sure - how much time must pass so that the doctor can consider the fruit in the form of a point and hear the rhythm of his heart is very difficult.
In obstetric practice there are certain regulatory deadlines for the ultrasound diagnosis of pregnant women. It takes into account that the transvaginal scan allows you to study the changes that occur earlier transabdominal. So that our readers can evaluate the quality of these techniques, we provide a comparative table.
The beginning of the abbreviations of the cardiac muscle of the future kid falls for a period of 3 to 4 weeks and it is possible to catch it only with the help of a transducer (special narrow vaginal sensor). It happens that the ultrasound doctor can not see anything in a fruit egg and recommends to come to the examination after 7-14 days.
It is the frequency of abbreviations of the muscle of the edge of the embryo, will allow the doctor to clarify the term of gestation:
- in 5 obstetric weeks, the heart rate is up to 85 beats / min;
- at 6 - from 102 to 126;
- at 7 - from 127 to 149;
- at 8 - from 150 to 172;
- in 9 - 175.
If in 7 obstetric weeks in the fruit egg, the embryo parameters will not be observed and the heart rate will not be brought, the preliminary diagnosis of the aembronction is the lack of an embryo in a fruine egg. However, in this case, the woman is recommended to come to an additional ultrasound after another 7 days.
Embryo parameters
Normally, the fruit egg has an oval shape and a dark gray shade. For full observation of the formation of the fetus on ultrasound, the following indicators are measured.
On the distinct visibility of the fetus on the monitor of the ultrasound, many factors affect the monitor and, if the embryo is not visible, you should not panic - you should wait two weeks and repeat the study.
At the beginning of pregnancy, the embryo resembles the letter "C", as its growth, the appearance changes - in 8 weeks you can already consider the head, and the allocated limbs
Why in the growing level of hCG on ultrasound not visible fetus?
Food shells of the forming baby produce a special substance - the chorionic gonadotropin of a person, indicating the conceived of the conception. In the first trimester, the number of this protein hormone in circulating blood women grow very quickly - in the first weeks its concentration is doubled during every second day.
Control of the growth dynamics of the HCG level allows obstetrician gynecologists to make an accurate conclusion about the development of pregnancy.
If, when evaluating the amount of this biologically active substance, an increase in its number is observed, the doctor with accurate confidence confirms the offensive and the prosperous development of pregnancy. Each woman wants to know about the occurrence of pregnancy early, however, the accuracy of the results of the ultrasound in the second week of the delay of menstruation is very low - it is better to wait until the fifth week.
If, with positive tests of hCG (in the case when quantitative summary tests of analyzes are consistent with the estimated period of gestation), pregnancy is not determined by the ultrasound, then you need to come to an additional examination. The HCG level of more than 1800 honey / ml corresponds to the third week of pregnancy and, if the ultrasonic scanner does not observe a fruit egg in the fallopian cavity, the doctor involves the development of ectopic pregnancy.
The lack of growth in the indicators of the HCG (negative test) may indicate the fact that the development of the embryo does not occur - either he died or no fertilization of the egg in this cycle did not occur.
Not all women know such a phenomenon as a biochemical pregnancy or a preclined spontaneous miscarriage. In this case, the conception occurs, the fruit egg is attached to the uterine wall, however, upon the occurrence of the period of the regular mente, the pregnancy is interrupted.
It should also be focused on those situations when the ultrasound pregnancy is not visible, and the test is positive - the monitoring of the HCG level is of particular importance, it is necessary to test the blood test several times, with an interval of several days. The final data of laboratory studies make it possible to determine the compliance of the hormone concentration of the norm and its increase.
Practitioners experts advise future parents try not to force events, an exception is possible only when it is necessary to confirm or refute the coming pregnancy
How to do if the pregnancy is not detected with ultrasound scanning?
In the event of a situation where the ultrasound doctor cannot see the outlines of the embryo, and sometimes the frenal egg itself, it is necessary to try to keep calm and not to succumb to false beliefs! This is possible in the absence of gestation or its term is very small to notice on the monitor. Without the presence of absolute evidence, the development of pregnancy is impossible to spend the scraping of the uterus!
You should contact another clinic and pass the survey is better - it is better to do this on an expert class equipment, which has a high resolution. It is also necessary that the ultrasound is accompanied by blood research on the level of hCG. Perhaps the survey will need to go several times. Future parents must make every effort to make mistakes of diagnostic methods not worth the life of a child!
