Many women choose to conceive through in vitro fertilization due to their own reasons. During this process, if the embryo fails to develop for some reason during implantation and gradually shrinks, and the gestational sac cannot be seen during testing, what are the reasons for biochemical pregnancy after transplantation?
1. The reasons for this are firstly due to defects in the embryo, such as genetic factors or chromosomal abnormalities that prevent smooth implantation. Some are also due to luteal insufficiency or insufficient secretion in the female body after in vitro transplantation, which prevents the endometrium from maintaining a certain thickness and leads to biochemical pregnancy.
2. Another reason is that women's uterus may be infected with viruses, such as adhesions or fibroids, which prevent the embryo from finding its place and eventually shrink. Some women may also develop viruses such as herpes during pregnancy, which can lead to miscarriage.
3. In order to avoid this situation, many hospitals now actively supplement progesterone to the mother after successful transplantation, keeping the value within the standard range. After transplantation, women should avoid heavy physical labor and should not stay in crowded places. They also need to regularly go to the hospital for follow-up examinations. In 1-2 months of pregnancy, doctors will conduct comprehensive testing of the gestational sac through ultrasound methods.
