I started what I thought was AF five days early this month, which has never happened. It changed my ovulation days quite a bit. But, it has been fove days now of only dark brown and never got bad enough to fill a pad or even a panty liner. It is kind of dark brown mucus sometimes too, and seems to actually be coming and going and the last day and a half it has mainly only been when I wipe that it shows anything at all. I have like a pencil lead size mark in my pantyliner so far today. I havent had usual bleeding at all, so I dont know whether to consider this a period or implantation. I also have mild cramping that comes ans goes, and back aches. I wasnt suppose to start AF until this Wednesday so I dont really want to test until then. What do yall think?