I had my periods on 26th of march and then in April i had an unprotected sex abd i wasnt sure if semen entered my body so i took i pill and had my periods on 26th of april and the periods were brownish at the end and this month i had unprotected sex on the 13th day but was sure that semen didnt enter my body and now im late to my periods. Is this pregnancy or because of the ipill? Plzzz help me i really need a sugestion.its an emergency.