... a Thrusday night and it was kind of lighter than usual. Ended on Sunday Evening. Started spotting This morning(Thurs) Bright red than Stopped a couple hours later. About a month ago I was taking Ibporfin 800 and Clindamycin for some tooth work that I had done. My husband and I do not use any protection and we do not do the pull out method we never have. Could this be because of stress, a cyst, or pregnancy?