My period has been postponed for three days.

It is actually quite common for menstruation to be delayed for three days. It is normal for menstruation to be delayed for seven days. If it is delayed for more than seven days, you can first take a pregnancy test to see if you are pregnant. If pregnancy is ruled out, a more detailed physical examination is necessary. There are many reasons that may affect the delay of menstruation, such as mental stress or side effects of medications.

Can I detect a delayed period of three days?

If women want to know very accurate results, it takes about 8 days from intercourse to pregnancy. After 3 days of pregnancy, there will be some changes in the woman's body or urine, and then the pregnancy can be measured very accurately. In general, it is 11 days after intercourse.

Women who use test strips to test for pregnancy should do so in the morning when they first urinate. The results will be more accurate at this time. However, women who have been pregnant for some time can choose any time period because the urine has changed significantly by then. Therefore, urine at any time of the day can be used for testing.

If the result displayed after pregnancy test is a purple-red line, compare it with the C line marked above. If it appears above, it means you are not pregnant. If two purple-red lines appear in the test area, compare the C line and the test line T line, which indicates pregnancy. The color intensity of the test line at different stages of pregnancy changes with the change of HCG concentration. However, if: no purple-red line appears in the test area or only one purple-red line appears in the test area, it means that the test result is invalid and you need to buy a new one for testing.

Misunderstandings of using early pregnancy test strips

1. The time of testing. HCG usually appears in the urine a few days after the fertilized egg implants, and it must reach a certain amount to be detected. Therefore, for women with normal menstruation, HCG can only be detected in the urine after the menstruation is delayed. Women with long menstrual cycles or abnormal ovulation can only be detected when the menstruation is amenorrhea for 40-44 days.

2. Some diseases and drugs may cause false positive results. Some tumor cells, such as hydatidiform mole, choriocarcinoma, bronchial carcinoma and renal cancer, can also secrete HCG.

3. Do not use expired test strips. Because chemical reagents lose their effectiveness over time, pay attention to the production date when purchasing.

4. Do not use test paper that has been damp.

If the self-test result is negative and you still haven't had your period after 1 week, you should do the self-test again. If it is not positive, it is best to see a doctor. Trust your body. If you experience various symptoms of pregnancy, no matter what the self-test results are, you should remember that the principle of early pregnancy test strips is only a preliminary test, and there will be errors when using early pregnancy test strips. The best way is to go to the hospital for HCG blood test, HCG urine test and B-ultrasound examination. If you are not ready for the arrival of the baby, it is necessary to detect the early signs of pregnancy as early as possible to confirm whether you are pregnant, so as to perform an abortion surgery later.