Help!

Evelyn • Mommy to an angel born in heaven 6/10/16, Dog mom to 2 pups, and married to my best friend. Cardiac RN ❤️

I’m 4 days late for AF, I just tested and posted the results below...I don’t see a second line, but I am so confused as to why my usually regular period would be 4 days late! I’m on the verge of tears here ladies, I need some advice!