How long does it take for an early pregnancy test to show results?

Many married women usually use pregnancy test strips to detect whether they are pregnant. In fact, there is a lot of knowledge involved. So, how long does it take for a pregnancy test strip to detect whether you are pregnant? What are the results of the test? ?What are the frequently asked questions? Next, I will explain these aspects in detail for everyone, hoping to be of some help to everyone.

How long does it take for a pregnancy test strip to detect whether you are pregnant?

First, the principle of using early pregnancy test strips for pregnancy testing is to test the HCG value, that is, the value of human chorionic gonadotropin in the body. This type of hormone is produced by the embryo and usually appears in the urine a few days after pregnancy. However, due to the small amount, it is not easy to test it at the beginning, and it will become increasingly obvious from 10 to 14 days. (HCG values ​​can also be measured through blood tests, and are much more accurate). Neither too early nor too late will have good results.

Second, it is generally recommended to use the first urine test in the morning for women who have just become pregnant, as the results are more accurate. But for women who have been pregnant for some time, urine at any time of the day can be used for testing.

Third, it usually takes about 7 days from intercourse to pregnancy. In other words, you can test whether you are pregnant on the day of pregnancy (equivalent to 7 days after intercourse).

What are the results of the early pregnancy test?

1. Negative: A dark purple line appears in the test area (comparison line C), indicating that you are not pregnant.

2. Positive: Two dark purple lines (comparison line C and detection line T) appear in the detection area, indicating pregnancy. The color intensity of the test line at different stages of pregnancy changes with the change of HCG concentration.

3. Failure: If no dark purple line appears in the test area or only one dark purple line (test line T) appears in the test area, it means that the test is unsuccessful or the test paper fails and should be tested again.

What are the common problems with pregnancy test strips?

First, dilute the urine. Drinking too much water may dilute the urine and cause a false negative result.

Performing experiments in the morning and at night may have some impact on the results. The highest HCG value is usually found in the urine in the morning, so many instructions recommend testing it when you wake up in the morning, but this is not certain.

During the test, pay attention to the length of urine that penetrates the test paper. Sometimes the length of time that urine soaks into the test strip is too long to make the test result indistinguishable.

Second, do not rely on test results to determine whether you are pregnant if you have recently experienced pregnancy. Because HCG can remain positive for a long time after the termination of pregnancy (after childbirth, spontaneous abortion and artificial abortion).

Some medical conditions and medicines may cause a positive result. Some tumor somatic cells, such as hydatidiform mole, choriocarcinoma, bronchial carcinoma and renal cancer, can also metabolize HCG.