Hi Kyliekd

I cannot offer you any advise about a chemical preg (that I know of properly) - but I did have a similar thing about 3 cycles ago. I have always had pain with AF but this one was different. It started with spotting on Wednesday and stopped by the Friday, but by Saturday morning OMG it came with a vengence!! I had to pull over my car and call an ambulance - the morphine was soooo good! The hospital staff said if I had of done a preg test on Wed it most likely would have been positive (as AF stopped for those few days) but of course any chance of pg after the Saturday was gone, so I am assuming it would have been a chem preg and that is why it caused so much pain. However I also have have Endo so that could have contributed also.
Good luck