I am a 28 year old female, healthy weighing 123 and very active. I was diagnosed with PCOS last March, 2012. My boyfriend and I use the pull out method, although earlier this month we had an oops. Now that I am on metformin I've had regular periods each month, although this month has been weird. I had a spotting of brown discharge Monday last week then pink when I wiped for 2 days after. I had slight cramps as if my period was coming but nothing. I've taken a hpt but it was neg. I've been extremely emotional and tired. I'm very confused.