af tomorrow

AF is supposed to start tomorrow. I'm pretty sure I'm out this month bit my family and friends think other wise. My best friend of 18 plus years told me last night she thinks I'm pregnant. she said for the past month shes noticed my butt and hips get wider. She's pregnant with a little girl and she said for the past two weeks every time she comes over her little girl goes crazy. Idk honestly I think I'm over thinking it a lot. what do you girls think?