I usually am very, very regular with my period but this past cycle I am two weeks late. This is very unusual for me. Also, at the beginning of the month, I had a little bit of brown, sticky discharge. I had a miscarriage back in September but have been regular since then. Any idea what is going on? My doctor said there is no way I am pregnant because we did a blood pregnancy test and it turned back negative. My husband and I are trying to get pregnant. Any ideas?