Even if a man does not ejaculate sperm into the vagina during sex, it is still possible for a woman to become pregnant, but the chances of pregnancy are low. This is because men secrete prostate fluid before ejaculation, which contains a small amount of sperm, and these small amounts of sperm may enter the woman’s body and combine with the egg to cause pregnancy. Therefore, some people may still be able to get pregnant even if they have sex outside of the body. Therefore, if you are not planning to get pregnant, you should use a method of contraception such as a condom during daily sex, which has the advantages of being hygienic, simple, convenient and effective. Before using a condom, you should check its expiration date and whether it is broken, and you should use it throughout the whole process to achieve good contraceptive effect. You can also choose to take the emergency contraceptive pill within 72 hours after sex, but in vitro ejaculation is not recommended. In addition, pregnancy should be considered if a woman experiences menopause, i.e., her next period is delayed by more than 10 days, after having unprotected sex. An early pregnancy test or a visit to the hospital for a blood and urine HCG test can be chosen to diagnose pregnancy and facilitate timely measures.