If the sperm is in the vagina, it can also get pregnant, because sperm can move and some of the sperm will move fast. The sperm in the vagina will move fast to reach the cervix and enter the uterine cavity to reach the fallopian tubes. If you happen to catch up with the ovulation period, then it will combine with the egg to form a fertilized egg, and then you will be pregnant. In the clinic, if you do not plan to get pregnant, it is recommended that you use a condom to prevent pregnancy during sex, so that you can achieve the purpose of contraception. In addition, you can also use an intrauterine device (IUD) for contraception, as the IUD is one of the reversible methods of contraception. If you plan to get pregnant, you can take it out 3 months in advance, so as to avoid the possibility of pregnancy, and in the clinical need to give termination of pregnancy, if you do not plan to get pregnant, it is recommended to take good contraceptive measures. Because extracorporeal ejaculation and the presence of sperm in the vaginal opening can lead to pregnancy.