Hello doctor,
My name is Vasanthi. I had Unprotected sex with my Boy Friend one time in the month of october. Later i got fear of pregnant and my bf gave mt pill.My period is always regular but in the month of november it got delay and after the intake of mt pill i got my periods 4 days late from my due date. after that we went to doctor and undergone ultrasound scan they suggest that am having PCO. and prescribed Meprate tabulate for 10 days. my period due date is 21-11-2010. but its 4 days over. still i dint got it. we dont had sex after that one time. We took hcg test in the clinic it came negative. am Very much confused please let me know whether i am pregnant and the chances of me being pregnant. and the reasons for my periods delay please.