I really wish I had a clear cut answer for you. I know Cheryl (dizynurse) spots before and after she O. I think its related to your body ovulating. They also say, or at least I've heard, that if you do spot around O time its a sign of a big healthy egg being released. As long as you have fertile cm around this time w/ the spotting I wouldn't worry too much about it. You may want to speak with your dr. about it though. I'm so sorry I couldn't be of any more help.