Okay, where are the Glow-savvy ladies??? Lol

How do I mark a period as late, without actually changing the days that a period occurs? I have searched through other posts about it, and see some people say that there should be a button for it at the bottom of my calendar, but there isn’t one for me. I have tried putting “None” in the Menstruation log, but it is still telling me I’m on my period. This is the first time I’ve been late, so I’m really hoping for a bfp this month. 🤞🏻🙏🏻