i got married recently ( 6th Feb 2011).My last menstrual cycle was on 7th Feb and was a normal 7 day period. I have had an unprotected intercourse due to which i had taken an i pill. Soon after a week or so, to be precise,on 23rd i had a 2 day bleeding . Now am late with my periods. I had consulted a doctor as i had sever back ache and was worried if am pregnant . She had given 2 tablets for Back ache and also had undergone a pregnancy test. It was negative and asked me to consult her if i dont get my periods within 15th of this month. I still ahve not got my periods. I had a home pregnancy test done day before yesterday and was negative. But from yesterday onwards am experiencing stomach pain and feel like vomiting, but did nt vomit even once. i also have lower abdomen pain. Am really worried if am pregnant. am not at all ready for this at this moment. please help me out..