When women experience uterine prolapse, if it is only mild or moderate, it usually does not affect their ability to become pregnant normally. In most cases, when the woman lies down, the protruding part of the uterus might naturally retract, or it can be manually pushed back into the vagina. During intercourse, after ejaculation, the cervix may still be immersed in semen, allowing sperm to pass through the cervix smoothly, and the woman can become pregnant normally. However, in cases of severe uterine prolapse, such as when the entire uterus descends outside the vagina, and cannot be repositioned back into the vagina even when lying down, during intercourse, the ejaculated semen may not sufficiently immerse the cervix, and sperm may not be able to normally enter the cervix and uterine cavity. Additionally, many women with severe uterine prolapse might experience cervix erosion, bleeding, and infection due to friction, which can produce inflammatory cells that hinder the normal passage of sperm, leading to difficulties in conception.