Baby shower advice

Je

My baby shower is this Saturday. We are doing virtual and my mom and sister are hosting and organizing. My husband just told me he doesn’t want to attend. I know it’s not always typical that men will even attend, but we had planned for that up until now. My mom gets POd when things don’t go her way. So looking for advice: how to tell her/family that he doesn’t want to attend?

Thinking of just trying to keep it light hearted and tell her the day of!