I have a question for breastfeeding moms. I am pumping while I'm at work 2 times a day, right now my…

I have a question for breastfeeding moms. I am pumping while I'm at work 2 times a day, right now my son take 5oz bottles (and still have 5oz bags) but I have started making 6 oz bags how many should I do before I go up to 7 or 8 oz?