Some female friends rush to test their pregnancy test sticks when they are about to menstruate, only to find that the test sticks are one deep and one shallow. They are very puzzled about this situation. So, are they not pregnant with the test sticks being one deep and one shallow? What is the reason for the depth and shallowness of the pregnancy test stick? In fact, there are three main reasons for the depth and shallowness of pregnancy test sticks. Please refer to the detailed introduction below.
1. Just got pregnant
Generally, the household pregnancy test sticks we purchase on the market determine pregnancy by testing the levels of human chorionic gonadotropin (HCG) in a woman's urine. After fertilization, it takes about 7-10 days for the fertilized egg to implant, and the placenta will form after implantation to produce HCG substances. However, the initial amount of this substance produced is very small, and it takes at least a week to gradually increase. Generally, the pregnancy test results will be more accurate after the next menstrual period is postponed. If the pregnancy test stick is used too early, there may be a situation of one depth and one depth.
2. Ectopic pregnancy
Ectopic pregnancy "refers to the pregnancy process in which the fertilized egg implants and develops outside the uterine cavity. Normally, the fertilized egg should implant on the inner wall of the uterus to form a placenta. However, if there is inflammation in or around the female fallopian tube lumen, it can cause poor patency of the lumen, hinder the normal operation of the fertilized egg, and stay, implant, and develop inside the fallopian tube. Once the embryo develops too large, it can cause the fallopian tube to rupture, which can be life-threatening. After a woman becomes pregnant, the secretion of HCG mentioned earlier will rapidly increase. If the increase in HCG every two days is less than 66%, there is a high possibility of ectopic pregnancy or intrauterine pregnancy with poor development. Therefore, when the pregnancy test stick shows a pattern of one depth and one shallowness, expectant mothers should go for an ultrasound examination as soon as possible to see if the fetal development is normal.
3. Biochemical pregnancy
Biochemical pregnancy refers to the production of HCG when the sperm and egg form a nourishing cell layer 6 days after fertilization. After the fertilized egg implants, HCG can be detected as a biochemical indicator, but later the embryo does not continue to develop normally and the nourishing cells die, so it no longer works and continues to produce HCG. If the depth and shallowness are detected by a pregnancy test stick, but later cannot be detected, it may be due to unsuccessful implantation, that is, you are not pregnant.
A deep and shallow pregnancy test stick indicates a higher possibility of pregnancy, mainly due to the low HCG value in urine during early pregnancy. In addition, it is also related to factors such as ectopic pregnancy and biochemical pregnancy. Therefore, when the pregnancy test rod is gradually deepened, it can be observed for a few days. If the pregnancy test rod continues to deepen, it means pregnancy.
