We should all be aware of the common symptoms of pregnancy, such as delayed menstruation, aversion to greasy food, nausea, vomiting, abdominal distension, constipation, dizziness, fatigue, frequent and urgent urination, etc. Little do people know that in life, some female friends may encounter many signs of pregnancy but cannot detect the pregnancy, which makes people anxious. What is the reason? Is it pregnancy or something else? In what cases can the pregnancy test fail to show? Why sometimes there are pregnancy symptoms but no test results? The key is these two situations: one is that it is too early, the biochemical indexes change very little, and it is not yet time to be detected; the other is an early ectopic pregnancy. For women with regular menstruation, if amenorrhea occurs, it is basically possible to determine whether they are pregnant by testing urine HCG or blood for HCG testing. However, for women with regular menstrual disorders, because their menstrual periods are irregular, their ovulation times are also irregular. If delayed ovulation occurs, although the menstrual period has been delayed in terms of time, the ovulation period is still relatively short, and the entire fertilization period is also relatively short. The female body can secrete HCG only after the embryo has implanted. The sperm and egg usually begin to implant 6 days after fertilization, so the earliest time to detect it is 7 days. However, fertilization does not necessarily occur immediately during ovulation, and the HCG value is relatively low when the embryo is just implanted, so it may not be detected. Therefore, we usually recommend testing about 14 days after intercourse, which has a relatively higher success rate. Therefore, if the on-site sampling is done too early, the pregnancy test may not be able to be detected. There is also a special condition called ectopic pregnancy, which means miscarriage soon after pregnancy. At this time, early pregnancy miscarriage may always be manifested as delayed menstruation or menorrhagia, with no obvious symptoms. If you conduct an HCG test, you will find that HCG will be normal after a slight increase, so it is also called hidden miscarriage and is not easy to be detected. If you do not test when HCG levels are rising, but only test when they are decreasing, you may not be able to detect pregnancy. But specifically this kind of thing falls under the level of miscarriage. How to detect pregnancy Go to the hospital to buy early pregnancy test paper, it is best to use morning urine as the sample collection for testing. Once the data shows "captain", then there is an 80% or more probability that you are pregnant. You can see a doctor to take blood or urine for HCG testing. In particular, if HCG can be detected in the urine, it can be basically diagnosed that the pregnancy is successful. It is indeed very frustrating to encounter many signs of pregnancy but not be able to detect pregnancy. The above shows that this may be due to premature pregnancy or early ectopic pregnancy. Therefore, if you encounter such a thing, don't be too depressed, maintain a cheerful and happy mood, go to the hospital for a physical examination in time, and remember to check whether you are pregnant scientifically and take care of your body. |
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