A red line on the pregnancy test stick means I'm pregnant.

There are many pregnancy test sticks on the market now, and the price is relatively low. It has become a pregnancy test method often chosen by many women in the early stages of pregnancy. Its accuracy rate is relatively high, so it is accepted by the majority of female friends. If a red line appears on the pregnancy test stick, it may be that there is no pregnancy or the pregnancy test method is incorrect. So, does a red line on the pregnancy test stick mean pregnancy?

Pregnancy Test Kit Testing Principle: Pregnancy test kit is a kind of in vitro diagnostic (IVD) product. The so-called test is to use the pregnancy test kit to detect human chorionic gonadotropin (HCG) in urine. HCG is a troponin secreted by the placenta of pregnant women. It is distributed throughout the body with the blood, thereby acting on target organs. A certain concentration of HCG is also present in the urine. Currently, most pregnancy test products on the market use the colloidal gold method, which conducts qualitative or semi-quantitative detection of HCG in urine based on the double antibody sandwich principle to determine whether a woman is pregnant. It is worth noting that such pregnancy test products are not 100% accurate, and certain diseases may also cause increased HCG concentrations in the body, resulting in false positive results.

1. Not pregnant: Only one control line appears, indicating no pregnancy.

2. Pregnancy: If two lines appear, that is, both the control line and the test line are colored, and the test line is obviously clear, it means that you are pregnant; if the control line is obviously clear and the test line is very light, it means that you may be pregnant. Please collect morning urine with a new morning paper and retest every 2 days.

3. Invalid: No control line appears within 5 minutes, indicating that the test is invalid or failed.

When a red line appears on the pregnancy test stick, it may be because the test was taken too early and there is too little progesterone in the urine, or it may be because you are not pregnant. In order to improve the accuracy of the pregnancy test stick, you can choose to test it after getting up in the morning. The test results at this time are the most accurate.