If it is just a few rubs outside and there is no substantial sex and no ejaculation in the vagina, the chances of pregnancy are generally small, but pregnancy cannot be ruled out. Pregnancy is a series of complex processes in which sperm enters a woman’s vagina and combines in the fallopian tubes to form a fertilized egg, which is successfully deposited in the uterine cavity. And if you simply rubbed a few times and did not ejaculate, and the woman is relatively in the safe period, in this case, usually not a big problem, and you can not use oral emergency contraceptive pills. However, even if the man did not penetrate and did not ejaculate, unprotected measures will also have a small amount of semen and prostate fluid containing sperm flow. If the woman is ovulating at this time, we cannot rule out the possibility that the sperm at the vaginal opening will swim in and combine with the egg to become pregnant. Therefore, if this is the case, if you really do not feel comfortable, you can take oral emergency contraceptive pills 72 hours afterward to remedy the situation, the contraceptive effect is more than 95%.