When to pump??

Caitlin

Hi ladies! I’ve been EBF and haven’t offered my 6 week old a bottle yet. Next week I have a dentist appointment and I might be away longer than 2-3 hours so I’ll need to pump for my husband. When is the best time to pump without messing up your supply? Also I want to start pumping maybe once a day or every other day to build up an emergency supply.