If the male ejaculates after piercing the condom, there may be leakage of semen and sperm, so the patient has the possibility of pregnancy. Because after the semen and sperm are exposed, if there are stronger sperm, they may pass through the patient’s cervix and uterine cavity and enter the patient’s fallopian tubes to meet with the egg and form a fertilized egg, so the patient has a chance of getting pregnant. But this behavior is relatively low compared to coitus without contraceptive ejaculation, the chance of pregnancy is relatively low. Because the amount of semen and sperm leaking from the condom is very small, and the lubricating fluid in the condom also has a spermicidal effect, so it further reduces the activity and role of sperm. Therefore, the chances of pregnancy in this case are relatively low, and if the patient has a request for pregnancy, it is best not to take this method.