Picture of weak positive pregnancy test stick

The advent of pregnancy test sticks has made early pregnancy testing easier and more convenient. However, some female friends tested positive for weak positive results when using pregnancy test sticks to detect whether they are pregnant. Why does this happen? What exactly is the reason for a weak positive result on a pregnancy test stick?

What is the reason for a weak positive pregnancy test?

Pregnancy test sticks use hCG, which is commonly found in urine, to detect whether a woman is pregnant by combining the single or multiple HCG antigens in the device with the antigens in urine. Generally speaking, it can be used 7-10 days after sexual intercourse. It is better to do a pregnancy test two weeks after the menstrual period.

Many women choose to use pregnancy test sticks to detect whether they are pregnant. The pregnancy test sticks mainly determine whether the woman is pregnant based on the comparison line on the stick. Generally speaking, there are several types of coloring of pregnancy test sticks:

1. Only one comparison line appears on the pregnancy test stick: indicating that you are not pregnant.

2. Two lines appear on the pregnancy test stick, that is, the comparison line and the detection line are both colored, and the detection line is obviously clear: it shows that the pregnancy has already begun.

3. No contrast line appears on the pregnancy test stick within 5 minutes: This indicates that the experiment is invalid or unsuccessful.

4. One dark and one light pregnancy test stick: Generally speaking, if the contrast line is obviously clear and the test line is very light, it indicates a weak positive, which means that you may be pregnant, but not necessarily pregnant. In this case, you need to test again every two days with a new pregnancy test stick to collect morning urine.

Therefore, the fact that one dark and one light color on the pregnancy test stick means that you may be pregnant, but it only shows a weak positive because the pregnancy has just started. If the pregnancy lasts a little longer, it will show a positive result. But the results may not be accurate, and it requires repeated testing several times before a conclusion can be drawn. In addition, you can go to the hospital outpatient department to have a blood test for HCG to further confirm whether you are pregnant.