Fixing calendar on birth control

Aubrey • 26, married 06/2013, 1st babe born 9/17/2017 💜, 2nd babe born 4/20/2020 💜
I have had the implant for about 4 months but for almost a month now I haven't had a period. Glow keeps updating my period and saying that I'm supposed to start but I haven't had a real period since March. Is there a way to fix my calendar so I don't have to keep deleting my "period week"?