Baby shower and pumping?

Robyn

Hi ladies,

My sisters baby shower is on Oct 6th. I'll be away from 11-5ish. I have a few bags of milk stashed (will pump some more just incase for my husband so he's prepared). Wondering if I need to pump while I'm at the shower? Ideally I don't want to but I also don't want my milk supply to decrease.

If I don't pump, will this affect my milk supply?