Four days late and BFN

Ki

I always have 29-30 day cycles and my LMP was 4-16. I hate the waiting game. Just waiting on AF so I can start femara and do timed intercourse. First cycle away from the fertility clinic and I feel so defeated. Tested Saturday at 2 days late and it was BFN. I don’t even feel like AF is on her way. How long do you wait before calling your doc?

Needed to vent a bit. Thanks!