You say you had sex? To me and most others that means you had sexual intercourse. That the boys penis penetrated your vagina. That is the true meaning of sex. Anything else if foreplay or fooling around. If you did actually have sex, even if he did not cum in you then the answer is Yes. Because his precum has enough semen in it to make you pregnant.
If the two of you just played around, he fingered you and maybe you gave him an HJ then it might be possible depending on where his penis was in relation to your vagina while he was on top of you. If he did not come and just laid on top of you it would depend on where his penis was in relation to your vagina and whether or not he leaked any pre cum.
This is the best answer I can give you based on the information you gave. It really all depends on if semen were in play and where they were in relation to your vagina's opening. [ adviceman49's advice column | Ask adviceman49 A Question ]
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