Did He Rape Me ?? Wouldnt I Feel It?

Okay, Pleaseee! Im begging you, if you came here to say shxt to me. please dont. okay so im 15& there was a skipping party on friday so i went, basically there was this older guy like 21, & i told him i didnt like him like that.. but at the skipping party i got soo tipsy, not drunk but Highly tipsy cause i kept passing out & blacking out... anyway, i remember when we were at the house, the grl was like the cops are coming we have to go to another house, so like me & 40+ people went to another house, and i remember sitting on the steps that go upstairs thinking how tired i am; i dont even remember getting up, i just remember being up there & in the bed, going to sleep & all of a sudden, HES THERE. So im like oh whatever.. he was like are you okay? (cause he kept asking me that every 5 minutes) & im like yes, and thats the last thing i remember.. about half an hour later, somehow im awake and downstairs, (one of my blackouts, i walked myself downstairs) & everybodys like Ohhh , what were you doing up there !??! We heard thumpthumpthump, thump, like they kept saying it.. My question is, i think he did do something to me, cause wouldnt i remeber or feel it?? Or wouldnt my clothes be like on the floor or unbuttoned or something?? Im thinking about taking about 2 pregnancy tests in 2 weeks, but im freaked right now. Any help or advice? Oh & Thanks For Takinn The Time To Read This .