Had ipill after unprotected sex,had sex again using withdrawal method now 15 days late,negaive HPT.(no other signs of pregnancy but i am feeling cramps and i feel like i having my periods but there is no blood and i also got very ittle brown discharge hardly noticable around the time of my period) i am very scared i dont want to be pregnant i took various hpt the last one i took was when i was 15 days late it was negative,i want to know that is still there is chance of me getting pregnant or i am just late becuase of ipill and if i take a blood test(and if there is a pregnancy will it shown on blood test)?