hi, this guy dry humped me 2 weeks ago (july 20) and im so worried i might be pregnant. we were both wearing thin underwear but i dont know if he ejaculated or pre cmmed or anything. i feel slight cramping on my lower stomach and am so scared. im supposed to get my period too but i havent. after the incident my underwear was crusy from the inside but i dont know if it was from me or him. im so scared i dont know what to do.