i am 30 years old,no children .now having ovacare pregnency tablet,my menses period is 50 days and having PCOD.last my pregnency date was25 th.december.docter said my ovulation day is 5-12,today itook pregnency test ,i was negative,ihave lower abdominal cramping.am i pregnent?other wise when i have to intercourse with my husbent?please reply.