Increase supply post 12 months

Im going away on an international work trip for 4.5 days in Jan. I don’t really have enough freezer stash to cover the morning and night feeds while I am gone. I’ll pump and dump while away but I currently just pump once a day. That bottle is typically used next day at daycare.

Baby isn’t interested in cow milk and I’d like to continue breast feeding until two. When I leave baby will be almost 15 months.

Any suggestions on how I can increase my milk? I stopped MOTN feeds around 9 months and period came back 2 months ago and feel like that changed a lot of the milk age!

Tysm!