someone anyone please comment and help me. My boyfriend and I last had sex on July 29th which was my ovulation day and we had sex two days before that. He went to jail that day and I had my period for August. He still is in jail and no I have not been with anyone else. Here it is September and I am three days late. I’ve researched and researched and read that you can still have a period or bleed like your having a period and still be pregnant. Well I took a test today and it was negative like I figured. But my period is going on 4 days late. Is there a possibility that I am pregnant but it’s reading negative so should I go get a blood test done!?