Hi. My name is Shannon and I am a bit concerned. My boyfriend and I had unprotected sex on one of the days that I was fertile, and two days later I was ovulating. I am supposed to get my period on the 8th of September, and I kind of did. What I m concerned about is that my regular periods start of heavy, with very bad cramps, and usually when I wake up in the morning and use the bathroom is when my period comes. When the 8th came around, I woke up and used the bathroom, and I hadn t gotten any sign of my period. A few hours later, I was bleeding, but very lightly. Not like my normal heavy flows. I also have little cramps. Is it possible I could be pregnant? The blood that is coming out is a bright red color. I took a test about 4 days before my expected period and it came back negative.