Change in Ovulation day?

Cheyenne • Momma of two angel babies 2/1/18 👼🏻 2/3/19 & a sweet girl 12/15/19 👶🏼

Has anyone had glow change their fertile week/ovulation day? Last cycle it moved 2 days ahead (ie from 2 to 4) and this time it moved forward by almost a week. I’m scared a missed my window. Help!!!

This is my chart for this month. Temp same time every morning. I also don’t use OPKs, so adding a negative one isn’t what changed it....