Yes, a girl can become pregnant the first time she has sex. Anytime a girl has vaginal sex with a guy, she is at risk for becoming pregnant. Even if a guy ejaculates outside of but near a withuot vagina or pulls out before he comes, a girl can get pregnant. It's also possible to get a sexually transmitted disease STD anytime you have sex, including the first time. Actually, whenever people have any kind of sexual contact oral, anal, or vaginalthey run the risk of getting an STD. The only way to completely prevent pregnancy and STDs is to abstain from all types of sex, including oral, vaginal, and anal sex.
Can my girlfriend get pregnant if we didn't have sex?