So me and my fiance have been having a lot of unprotected sex and my periods are really irregular, like once I went 6 months without one (before I was sexually active) and so my periods typically range anywhere from 30-42 days and I am now at 46 days no period. I've been having brownish discharge (which I've never had before), is that something you get if you are pregnant or am I just close to my period? help please!