Sperm that does not enter the uterus is usually not pregnant because pregnancy is when the male ejaculates sperm into the uterus and combines it with an egg so that a fertilized egg is formed and then a fertilized egg is formed in the uterus. If no sperm is ejaculated into the uterus during intercourse, there will be no combination of sperm and egg, so pregnancy will not occur. Having intercourse during a woman’s ovulation period increases her chances of getting pregnant. 14 days before her next period is the day of ovulation, and 5 days before and 4 days after the day of ovulation, totaling about 9 days, is the period of ovulation. In the absence of good preparation for pregnancy before, ovulation must do a good job of contraceptive measures, you can choose to wear a condom or oral emergency contraceptive methods, can play a good contraceptive effect, according to their own situation to choose the right contraceptive methods, can effectively reduce the abortion of the body to bring harm.