No af today or yesterday

Christin • Wife & Mother. Ttc 2 ♥️ law
AF is always on time and I have yet to see it show up. No high hormones and I know when I was preg with my first I was a mess so I'm expecting af to show up I'm just SO frustrated it become irregular this month which means I have to recalculate when I will ovulate next. I tested yesterday with a BFN so I'm pretty positive I'm not pregnant. I just want things to be on schedule. 
I am blaming GLOW on the stress causing my missed period because it's been one month of using it and it's the ONE month it's not on time :((((
Just show up already!!!!