Helllpppp!! Pump question

shay
OK mommies my son is 3 months old he is now drinking about 5-8 ozs every 4-5 hours ... I can only pump about 4-6 ozs so he's normally still hungry after and I end up having to go in my freezer stash so I'm just curious on what some of you did as your Lil ones got older and started drinking more ??