Patient's question:
NoDoctor's answer:
During the first three months of pregnancy, the uterus is more sensitive, and the attachment of the chorionic villi to the endometrium is not very firm. During this period, sexual activity can easily promote uterine contractions. Semen contains rich prostaglandins, which can cause contractions of the uterine and fallopian smooth muscles. If uterine contractions are frequent during this period, it can lead to difficulties in implantation of the blastocyst. Therefore, sexual intercourse during the first three months of pregnancy can result in the most severe consequences, which is miscarriage, leading to the termination of pregnancy.