My period isn't supposed to start for four days (glow is accurate 95% of the time on the exact day I'll start) but I'm already having cramps. I'm TTC, been trying for over a year, and I can't remember ever cramping before my period started. Feels like I'm going to start early this month. So frustrated. I know all I can do is wait and see but I just don't have a good feeling about it. Anyone know what I'm talking about?