4oz Avent Feeding Bottle

Question po. Since 6weeks pa pwede mag pump, sulit ba na maginvest pa ako sa 4oz na bottle (O+month) OR yung 9oz (1+month) nalang? Help me to decide mommies. Thank you 💕#1stimemom #pleasehelp 📌Admin, pls paki approve ng makahabol sa sale&vouchers ni Lazada😊