No, you cant mix it at same bottle. Is either you give 1 formula milk per session or breast milk per session. Shall you want keep breastfeeding, pump regularly like 3-4 hour once and do consume right foods to boost up your breast milk quantity. Papaya and pumpkin work well for me.
Hi mommy you can't mix formula milk n breast milk. You can however mix breast milk pumped on the same day as long the temperature are the same when mixing.
Mamonster