My period is 14 days late. About a week ago I had a small amount of brown discharge that last a couple of days. I have bad cramps in my lower right stomach that goes through to my lower back. In the past I was told by OBGYN that I have PCOS, however it has been under control for about 6 months now. I have taken two pregnency tests and they both have come back negative. Any suggestions on what this might be.