What's wrong with me! I've been spotting for the last 10 days and it's very brown, not even red. I've never had this happened to me before. I don't have a yeast infection, or any STDs, or bacteria (already checked a few months ago) so I don't know what's going on. Been TTC since March 2015 and along with the spotting, my boobs are extremely heavy and sore. What can this be?