Frustrated!

Lulu
So AF is late (supposed to start today according to glow and three days ago according to another app I use) and I have no symptoms of it starting but I've been testing every morning for the past 4 days and they are all negative! How frustrating is that!! I wish AF would just show up so I know I'm out and can focus on the next cycle OR get a BFP but I have a feeling that won't be happening and my period is just late for some reason.  How's everyone else doing today?