What are the signs of biochemical pregnancy?

Embryo biochemical pregnancy is the combination of sperm and egg. After the successful combination of sperm and egg, it can be detected with a test strip about 14 days later. There is secretion after the successful combination of sperm and egg, but it must be combined into a fertilized egg. If it combines but does not implant successfully, this is called biochemical pregnancy. A biochemical pregnancy is when no gestational sac can be seen in the uterus by ultrasound. Want to know what are the signs of biochemical pregnancy?

1. What is biochemical pregnancy

Biochemical pregnancy means there is no clinical pregnancy. This symptom is now called "subclinical miscarriage" in medicine. It means that the sperm and egg combine but do not successfully return to the uterus to implant, resulting in miscarriage along with menstruation. The sperm and egg combine to form a fertilized egg. About the seventh day after fertilization, the fertilized egg differentiates into a trophoblast (the future placenta), implants into the endometrium, and gradually secretes hCG. Biochemical pregnancy is the phenomenon that the fertilized egg does not return to the uterus and implant. Biochemical pregnancy generally does not affect the next pregnancy.

2. Causes of biochemical pregnancy

1. It is generally believed that the causes of biochemical pregnancy are the same as those of spontaneous abortion. Embryo chromosomal abnormalities and defects in the fertilized egg may be the main causes of developmental stagnation.

2. Ovarian corpus luteum insufficiency, insufficient progesterone secretion, and endometrial abnormalities affect the implantation of the fertilized egg.

3. Uterine factors: Uterine hypoplasia, submucous uterine fibroids, endometrial polyps, intrauterine adhesions, endometrial tuberculosis, etc. affect the implantation of the fertilized egg.

4. Excessive mental stress, especially severe anxiety due to failure to conceive, and excessive psychological pressure.

In a sense, biochemical pregnancy is a natural selection of survival of the fittest. Women of childbearing age should not panic if they encounter such a situation, as biochemical pregnancy generally does not affect the next pregnancy. Unless this happens multiple times, it is necessary to go to the hospital for further examination.

3. Premonitions of biochemical pregnancy

Under normal pregnancy conditions, the fertilized egg will return to the uterus and implant, and the secretion of hCG will increase rapidly, doubling in about 2-3 days. 14 days after fertilization, which is about 30 days after menstruation, hCG can be detected in the blood, or it can be detected using an early pregnancy test strip. Symptoms of a biochemical pregnancy are different from those of a normal pregnancy:

1. B-ultrasound does not show the presence of a gestational sac in the uterus, indicating that the pregnancy has terminated.

2. A very low blood hCG value only means that you are pregnant, but it cannot indicate whether implantation is successful.

3. Generally, spontaneous abortion will occur within 50 days. A grayish-white film will flow out.