Why does the early pregnancy test become lighter

Some women find that when using early pregnancy test strips, the results become lighter and lighter. There are many reasons for this symptom, which may be a blood problem or a liver problem. If you want to test accurately, it is best to use the hcg test, which has the best effect. In addition, if the pregnant woman's progesterone level is too low, this phenomenon may also occur.

How many days early can pregnancy be detected?

To know how long it takes for an early pregnancy test to detect pregnancy, you must first understand how long it takes for HCG to be produced after pregnancy. 1. Waiting time for sperm and egg to combine after intercourse: 1-3 days. After intercourse, it takes some time for the sperm to merge with the egg. Sometimes he may have to wait for 72 hours for the shy egg to mature and come out (ovulate) before he can have sex. 2. The time it takes for the fertilized egg to pass through the fallopian tube and enter the uterus: 3-4 days. After the sperm and egg successfully combine, the fertilized egg develops and moves through the fallopian tube toward the uterus, and it takes about 3-4 days to reach the uterus. 3. The time the fertilized egg wanders in the uterus: 2 to 3 days. After the fertilized egg enters the uterus, it will wander around in it for a while before it finds a place to settle and finally implants in the uterus.

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

The working principle of self-testing pregnancy using early pregnancy test strips is to detect the hCG value, that is, the value of human chorionic gonadotropin. This hormone is produced by the placenta and usually appears in the urine a few days after pregnancy. However, due to the small amount, it is difficult to test it at the beginning and it only becomes increasingly obvious after 10-14 days. 2. For women who have just become pregnant, it is generally recommended to use the first urine test in the morning, as the results are more accurate. But for women who have been pregnant for some time, urine from any time of the day can be used for testing. 3. It usually takes about 7 days from intercourse to pregnancy. That is to say, pregnancy can be detected on the day of pregnancy (equivalent to 7 days after intercourse), but the accuracy is not high. Generally, the test results will be more accurate if you test again 14 days after having sex.