I have always had a very regular cycle, to the point I know I'll get my period every 4th Wednesday first thing in the morning. I've been late maybe 3 times in my life and only by a day or so, if that. I was due to get my period Wednesday 2/1/17. It still hasn't come yet. Which is super weird, because as I said I am never ever late. I have had a small amount of spotting on and off since Wednesday but it is not what I would call a period, because it's hardly anything at all. I have a lot of pms symptoms, but no period. I took a test and it said negative, so I was just wondering if anyone had any ideas or advice on what could be going on ?