If there was sperm on his penis when he was down there, then yes there is a possibility. But if he was just rubbing it down there or something and he didn't ejaculate then I would say you have nothing at all to worry about. Sperm must be present for you to get pregnant, it must go up into the vagina and come in contact with the egg. So stop worrying.

i would really like to say your pregnant but hey its always a possibility and thats why you need protection, if your not using protection then you can be scared of being pregnant cause you know it "can" hypothetically happen!

why do you people do these things?

You are most likely not pregnant. If you're not sure, wait until a week before your period is due (you do at least know when it's due, if you're becoming sexually active?) and take a pregnancy test. There are ones that work that early.

Did he ejaculate outside of your vagina? Or did he just rub against you? If he orgasmed (if "cum" came out) near your vagina, your chances of pregnancy are still very low, but higher than if he didn't orgasm.

Virgin or not, find out how to get on reliable birth control in your area .B.E.F.O.R.E you have sex.