My last period started on Jan 26 and ended 7-8 days later. My boyfriend and I had unprotected sex on Feb 8 and We had intercourse for 5-10 mins. He didn't ejaculate, but when i stopped and went off (I was ontop of him) I saw a bit of a cloudy precum drop ooze out. He asked if he could masturbate because he wanted to ejaculate, so that tells me he didn't ejaculate inside me. I heard that precum only contains sperm from the last ejaculation. He ejaculated the night before and urinated 2 times, one right before bed, and another, in the morning. Right now, March 4, i haven't gotten my period yet. My cycle is usually 33 days and my period was supposed to be on Feb 28. I took a pregnancy test on March 2, and it came out negative. I'm really worried right now. What is the possibility of me being pregnant? Please give me all the information you can offer from reading this :)