Glow help!!!!

Cassi • Single Momma of Four Graci 5-7-15 Graeson 9-7-16 Gabriel 8-6-19 and Baby G due 6-25-22! Angel Momma.
I started AF and now its not on my calendar it like disappearded or something like idk anyone else with this problem?? My pink days for my AF are gone?? Kinda worried