Do not pull out the penis all night may cause inflammation of the genitals on both sides, and may also be pregnant.
1. It has not been removed for a long time after sex. The penis stays in the vagina for a long time. The micro ring and acid base environment will also increase the risk of vaginal infection;
2. Sexual behavior without any contraceptive measures may lead to pregnancy. After sex, the penis will still have residual semen. After sex, it is not pulled out. In the vagina for a long time, under the action of vaginal squeezing, residual semen will flow out of the sperm out of the vagina. To the vagina, it leads to fertilization and pregnancy. The probability of pregnancy is relatively small.
