Given that my periods were due to start by the 22nd of September (3 days after I took the ipill) and they haven't yet.. is there anything to worry about? The bleeding which started after 5 days of taking the pill still continues though very light. How long after unprotected sex can a pregnancy test be taken? I understand it should be taken one day after the next missed period but I haven't yet had my this month's cycle and I don't want to push the test for too late.