Exclusively pumping ounces?

Janet • First time mommy to Christopher born September 6.
I'm a FTM and exclusively pumping because my LO didn't latch and my milk came in very late. He is four weeks old and I just dropped from 8 to 6 sessions because I am pumping around 36 to 38 ounces each day and he is eating around 30 ounces. Is anyone else exclusively pumping? How many ounces are you averaging each day and how many sessions are you pumping? Thanks!