Hi I have always had irregular periods. At one point they became sort of regular every 40/42 days which for a lot of people is still a long time. For the last 9months they have started going really irregular again and the last 2 cycles have been over 50 days long, my current cycle is on 54 days and still hasnt started! About 2 weeks after my last period I had a week of brown discharge which only appeared on the toilet tissue after going to the bathroom and previously I have had it a few days before/after a period. I have previously had a test for PCOS and nothing came back (8months ago). During this time me and my boyfriend have done mutual masterbation, however, always participating directly after washing hands with soap and there has been no contact with sperm etc... - I have done pregnancy tests to be sure and they have come back negative and I have participated in anything for the last 3 months - what could the problem be?