Semen ejaculated in the mouth will not result in pregnancy. When a man ejaculates through oral sex, i.e. the woman directly kisses or repeatedly stimulates the man’s penis with her mouth so that the man’s semen is ingested into the woman’s mouth, this type of intercourse usually does not cause pregnancy in women because the sperm cannot travel to the fallopian tubes and cannot meet and unite with the egg. Unless the man or woman inserted his penis into the woman’s vagina before the semen is ingested into her mouth, the man may be sexually aroused causing a small amount of sperm to flow into the woman’s vagina, resulting in an unwanted pregnancy. Therefore, if you have no plans to have children for the time being, it is recommended to use contraception before having sexual relations, and ejaculation outside the body is not safe.