When a woman wants to get pregnant after sex, the uterus is anterior and lying flat will cause some of the semen to flow out, but it will not affect the woman’s conception. This is because thousands of sperm are discharged into the woman’s vagina during sexual intercourse. As long as one healthy sperm passes through the cervix, reaches the uterine cavity and enters the fallopian tube, where it unites with the egg in the abdomen of the fallopian tube and develops into a fertilized egg, it can cause the woman to become pregnant. If a woman’s uterus is in a normal position and there are adhesions at the opening of the cervix or adhesions in the fallopian tubes, the endometrium is thin and the egg and sperm are not able to unite and develop into a fertilized egg, and even if they do unite and develop into a fertilized egg, when transplanted into the uterine cavity, the endometrium will be undernourished and will lead to miscarriage. Therefore, it is important for women to have their reproductive system checked before preparing for pregnancy, and also to pay attention to whether there are factors of infertility in men.