It is also possible to get pregnant after one minute of intercourse. As long as no effective contraception is used during substantial sexual intercourse, pregnancy can result. The male penis secretes a small amount of clear mucus after erection, which contains a small amount of sperm. If a condom is not worn throughout sex, the secretion will enter the woman’s vagina and bring in sperm, even if it is only for one minute. If the egg in the woman’s body is mature, then even one drop is enough to fertilize the woman. Therefore, if you are not planning to get pregnant, it is best to wear a condom throughout the entire time for effective contraception. If you do not wear a condom, you should take an emergency contraceptive pill within 72 hours of having sex.