Trying to change my period days.

Amy • Married to my best friend! Mom to 2 amazing boys and expecting a little girl in June!
I started my period early this month and I'm trying to fix it but it's not letting me delete my approximate period that glow sets for you. Delete button shows up light grey and is not an option to push. Also I put today as CD1 and glow is telling me today is my peak day. :/