Inversions do not have much effect on pregnancy and there is no scientific evidence to confirm this. Although inversions can prevent sperm from leaking out, there is no scientific evidence to confirm that this process is beneficial for pregnancy. On the contrary, if you do not take care of your safety during inversion, it may also lead to a fall causing injury to other parts of the body. In some women who have a retroflexed uterus, the cervix will be slightly tilted forward, and sperm may not be able to enter the uterine cavity as easily after intercourse, or the sperm may need to stay in the vagina for a longer period of time to slowly travel to the uterine cavity. Need semen retained in the vagina for a longer period of time, such women after intercourse, inverted on the sperm swim to the uterine cavity is less helpful, can be appropriate to raise the hips, can increase the chances of pregnancy. Keep a good mood, avoid excessive tension, pay attention to genital cleaning before and after intercourse to avoid cross-infection.