My husband and I had sex around the middle of my cycle and six days later I took Next Choice (a little late, but it was to calm my husband). Anyway, well today we were having sex (rougherthan usual) and midway through he noticed blood. It's not enough to need a liner or anything (I can see it on the toilet paper), but I am still bleeding. I don't know if it is implataion bleeding, caused by Next Choice, or if I just got hurt a little bit during sex. My next period is due in mid November.