AF due Sunday

Brittanny
According to glow but normally my cycles are 24-26 days and I'm on day 27. I'm bloated and gassy and keep having little flutters in my chest, not to mention a headache. I tested yesterday and it was a bfn. Trying to hold off till Sunday but will probably test tomorrow. I'm so Hoping these aren't AF symptoms but time will tell! Good luck ladies!