In the case when the pregnancy test is negative, and you feel and experience all the signs of pregnancy - you just need to run to the doctor! It is better to go through a gynecological examination and be calm that everything is in order.
However, it should be said, that even in the early stages even ultrasound (and even more so a gynecologist) does not always determine the presence of an ectopic pregnancy (because the fetus is too small, or the fetal egg may not yet have formed). Can a test show an ectopic pregnancy? Depends on how to put this exciting question. If you ask several people (including specialists), if the test can determine an ectopic pregnancy, you will get several different answers: it can not, of course, determine, does not always determine, in any way it can not be and so on. Who should I trust? Let's try to figure it out.
First, you need to understand for yourself what a pregnancy test is and how it works. Any such test is aimed at determining in the urine of a female HCG (human chorionic gonadotropin) - a hormone, which is the evidence that the pregnancy has come. This hormone is localized in the beginning placenta, and not in the uterus. Consequently, if the pregnancy is (any, and pathological as well), the test should show it. Another thing is that with the help of an ordinary home test it is impossible to determine whether the pregnancy is normal or pathological. Here for this purpose also it is necessary to pass or take place as soon as possible survey at the gynecologist to exclude such probability.
Doctors say that in the case of developing an ectopic pregnancy, the level of hCG is much lower than in the case of an ordinary ectopic pregnancy. Therefore, tests may not recognize such a pregnancy, that is, do not show it. So how not to twist, and in the absence of menstruation in due time it is better to go to the gynecologist. The same applies to the situation when the test you conducted is positive, But you see yourself spotting bloody discharge. The doctor will direct you to a transvaginal ultrasound with the insertion of the sensor into the vagina. And if there is a need for it - and for an appropriate blood test (he will show all about it).
However, there are tests that not only determine the presence of the fetus, but also recognize an ectopic pregnancy or the threat of spontaneous abortion at the earliest possible time. Among these is the INEXSCREEN test cassette. It is used both for early diagnosis of pregnancy from the first day of delaying menstruation, and for determining the probability of pathological pregnancy. This test is based on immunochromatographic analysis. What does it mean?
All tests are based on determining the level of hCG hormone in a woman's urine. The INEXSCREEN test for pathological (ectopic) pregnancy reveals the ratio of the two isoforms of this hormone: modified and intact. In a normally healthy pregnancy, about 10% of the modified chorionic gonadotropin is present in the hCG structure. With ectopic pregnancy, the content of hCG is well below 10%, which is the diagnostic criterion of pathology. This test is an innovation, it is quite complex in the scientific sense, but it is easy to implement in practice by every woman at home. The only thing to consider is that the diagnosis of physiological pregnancy can be carried out from the first day of the delay, but the ectopic pregnancy test determines 1-2 weeks later.
Regarding reliability, a test for the pathological course of pregnancy is significant in ectopic pregnancy by 90% at a spontaneous abortion - on 65%. And it should be noted that these are quite high indicators. And in order for the result of the test to be as accurate as possible, it is necessary to follow certain rules:
- The urine for the test should be used immediately after its receipt. When stored, the chorionic gonadotropin is converted from one form to another, and the result can not be sufficiently reliable.
- An open test cassette should be used immediately.
- Before the test, you should carefully study the instruction and use it when interpreting the results.
- In the case of alarming symptoms (pain in the lower abdomen, spotting), it is necessary, regardless of the test results, to seek medical help from a doctor.