So, let me start out by saying, I have irregular periods. When I say that I mean they don't come around the same time every month. Pretty close, but not straight on. But they do come EVERY month. So, next week I'm "suppose" to start. Yesterday, I was at my boyfriends and I thought I started. I wiped and there was some bright pink blood. But there was none in the toilet and it only happened when I wiped that one time. So, before I left we had sex. And now it's gone. It's been a day now and it hasn't come back. Is it possible for sex to stop your period completely? I've had it to where it stopped it for maybe an hour or two. But it's like gone. Poof! Magic! Gone!