I am on the Birth control pill, and I have been using condoms also. And 3 weeks after starting the pill I started spotting , then the spotting stopped and when I had sex in a certain position the side of my stomach hurts when Im on that position , so once i switched to a different position it doesnt hurt, when i switched to that new position I was bleeding , so me and my boyfriend stopped. So the days went by I stopped bleeding and I had sex again and I didnt bleed, but yesterday I had sex again and I went in the position that hurts again so once it started hurting i went back to the one im comfortable in and after we were done I was bleeding a little bit. I know I am not pregnant because I use spermicidal condoms and we always check them when we are done, and I dont have any std's and he does not either. And I have missed pills, but once I started spotting I stopped.