Okay about 2 months ago i was really drunk at a party and this guy tried to have sex with me.. We did it for about one minute unprotected but then i told him to get off i dont think he could of cummed in me but i'm not sure maybe it could have been precum but every since then i kinda had a period like a week later but it was very very light and wasn't even red more of a brown color. I should be getting my period any time but i haven'y yet this month and i'm very worried. Could i possibly be pregnant?