New mom need help

Da

Morning ladies had my sweet girl on the 24th first two days I had bad latch’s and didn’t know which did pretty bad damage on my nipples after being taught a good latch it now kills to have her latch I’ve tried up til early in the morning today I was crying and couldn’t take it anymore so we broke out the pump and pump which still hurts my nipples but not as bad as her My questions is does anyone know how many ML she should be drinking each feeding? I’m pumping 2 oz every hour and half she drank 20ml one time and 30 the next. Any advice would be amazing