What happens when I use a test paper to measure one line deep and one line shallow?

The pregnancy test stick can detect one or two bars. One bar means no pregnancy; two bars mean pregnancy. However, many women who are preparing for pregnancy and lack pregnancy knowledge have encountered the situation that the pregnancy test paper has one dark and one light when using the pregnancy test paper. This makes them very worried. Does this mean pregnancy or not? So, does one dark and one light red bar mean pregnancy?

Does one dark red bar and one light red bar mean pregnancy?

Many women who are preparing for pregnancy have encountered the situation where one pregnancy test paper is dark and the other is light when using pregnancy test paper. Is it pregnancy? Or is it not? If the contrast line is obviously clear and the detection line is very light, it means that you may be pregnant, but it does not necessarily mean that you are pregnant. In this case, you need to collect morning urine and test again every two days with a new pregnancy test strip. Therefore, if one dark line on the pregnancy test paper is lighter than the other, it means that you may be pregnant, but don't be too happy too soon, because it may also mean that you are not pregnant, with a probability of 50% each.

There are 4 external reasons why the pregnancy test paper is one dark and one light

1. If you are pregnant for a short time or have an ectopic pregnancy, the HCG level in your body is generally slightly low, and the test area is only faintly visible, which will also cause the pregnancy test paper to be dark and light.

2. In special cases, such as hydatidiform mole and choriocarcinoma, the body's HCG level will be too high and the urine test may not show a positive result.

3. After three months of pregnancy, HCG levels decrease and urine tests may sometimes show negative or weak positive results.

4. The pregnancy test strip is particularly sensitive. During ovulation, women's HCG and LH will reach a peak, and will return to normal levels after ovulation. However, before the next menstruation, these two levels will rise a little. If the commonly used pregnancy test paper is particularly sensitive, it is easy to show a faint test line.

Therefore, if one dark and one light pregnancy test paper appears, it is possible that you are "fraudulently checking the results". It is recommended that you buy another pregnancy test paper after 3 days and test again. If the color becomes darker, then congratulations, you've won the lottery, go to the hospital as soon as possible to draw blood for HCG test to confirm.

Two red bars, one deep and one shallow

The pregnancy test stick may be dark and light for this reason

1. It may be an ectopic pregnancy

Ectopic pregnancy occurs 6 days after sperm and egg fertilization. When the sperm and egg produce trophoblast layer, HCG can be produced. After the embryo implants, the HCG biochemical indicator can be detected. However, the test tube embryo does not continue to grow normally afterwards, the trophoblast dies, and it no longer works to produce HCG.