Hi, I Was Taking The Birth Control Pill, Orsythia, For

Hi, I was taking the birth control pill, Orsythia, for about a month in a half and on Sunday, Jan 8, I stopped taking it. My husband and I are hoping to get pregnant so we started having unprotected sex right away on Sunday and Monday. However, today I noticed a brownish-slimy discharge/spotting. I must also add I was recently diagnosed with PCOS, but I do have a 9 year old already. Is it possible that I'm currently ovulating? Or is the brownish discharge usually a sign of the aftermath of ovulation. Thanks!