I got my period on sunday 04/14 and i had unprotected sex Wednesday 04/17 around 2:30ish pm. but after i had sex, i went to sleep without wearing a tampon or a pad and after i took a shower and a nap, i woke up and i still had my period, i was still running and there were clumps. I took Plan B on Friday 04/19 around 3:15pm.. Is it possible that i can be pregnant? i know i took the Plan B, does anybody know if it'll work? Can anybody out there help me? Im soo worried !