Women of childbearing age should consider pregnancy when their menstrual cycle is delayed. At this time, women can go to the pharmacy to buy a pregnancy test stick, which can test whether they are pregnant or not. Everyone should strictly follow the instructions when using the pregnancy test stick, which can increase accuracy. So, how does a pregnancy test stick determine if you are pregnant?
When two red lines appear on the pregnancy test stick and the test area is clearly displayed, it is a positive sign, indicating that the woman is pregnant. If there is only one red line, it means it is negative, indicating that the woman is not pregnant. After using a pregnancy test stick, sometimes there may be a situation of one deep and one shallow, which is a weak positive sign, indicating that women may have the possibility of pregnancy. The pregnancy test stick may not have a red line, which is likely due to improper use and issues with the test stick.
The pregnancy test rod detects whether a woman is pregnant by measuring the HCG level in her urine. HCG is a hormone secreted by the female body during pregnancy, which can exist in urine and blood. Usually, HCG can be detected in urine a few days after pregnancy, but due to its small amount, it is difficult to test for it.
The HCG in female urine will significantly increase 10-14 days after pregnancy, so a pregnancy test stick should be used at this time to detect pregnancy, and it is best to use morning urine for testing.