Two months of pregnancy test paper can not detect

Early pregnancy test strips can be used to preliminarily determine whether a woman is pregnant. However, not all pregnancies can be detected through early pregnancy tests. For example, testing at the beginning of pregnancy or at night will affect the test results. In addition, if there is a problem with the early pregnancy test paper used, it will also affect the test results. Next, I will introduce to you the specific reasons why the early pregnancy test paper cannot detect pregnancy.

If the pregnancy test paper cannot detect it, first check whether the test paper is used correctly. Before using the test strip, be sure to read all the instructions on the box carefully. Some pregnancy test strips may specify that you must use the first urine sample of the morning. First, collect urine in a clean cup, open the pregnancy test package purchased on the market, take out the reagent and place it horizontally in a dry place, use a dropper to absorb the urine to be tested, and drop it into the groove of the test card. Wait for a few minutes until the urine in the test card is completely absorbed, then take out the test piece to know whether you are pregnant or not. The waiting time is about four to five minutes, which is fast and convenient. The accuracy varies depending on the product of different brands, and the average accuracy is 90%.

The second thing to look at is the test time. If the pregnancy test is tested too early or used improperly, there will be errors, resulting in errors in the test. Usually, it is relatively accurate to test with an early pregnancy test 7 days after the menstruation is delayed. However, it is recommended to go to the hospital for a blood HCG test, which can quickly and accurately detect whether you are pregnant. When women do pregnancy self-tests at home, without any outside guidance, the test results are usually only 50% to 80% accurate. If the test is done in a laboratory in the presence of a doctor who can ensure that the test strips are working properly and the woman uses the test strips exactly as indicated, the test accuracy is likely to be close to 100%.

Based on experience, there are several possibilities for early pregnancy test strips not detecting pregnancy:

1. If you do a urine test too early, the pregnancy test may not show up. Therefore, it is best to do a pregnancy self-test two weeks after your period is late, so that the result will be more reliable.

2. If you do a self-test using an early pregnancy test strip at night, the accuracy will be affected to a greater or lesser extent. Because early morning urine generally has the highest HCG value. The HCG content in urine at night is very low and is generally not easy to detect.

3. If the pregnancy has just begun, or there is a possibility of ectopic pregnancy, the HCG level in the body is generally low. The test sample needs to be left to stand for more than 3 minutes (usually only 1 minute), and it is necessary to carefully identify whether there is a weak positive - the color band in the test area only appears faintly.

4. Whether the pregnancy test strips are used correctly. Many friends may not have used them, so before use, be sure to read the instructions carefully and ensure the temperature and hygiene of the testing environment.

5. Check whether the test paper is expired or damp. Because the test paper contains chemical ingredients, the chemicals will lose their effectiveness over time, so be sure to pay attention to the production date before purchasing.