My daughter was at 3 oz at about 3 weeks and then at a month we moved up to 4oz. Now she is at 5oz at almost 2 months

When my son was 3 weeks old he was eating 4 ounces! Some babies just eat more

My newborn is a week old and he's already asking for more.. So I give him two ounces and after that if he's still hungry, I give him 1 more ounce

@savvylynn1, @izamarpink thanks ladies I appreciate it!

Maybe two weeks after go up an oz if she still hungry. My newborn was at 2oz after 2-3 weeks he was at 3 and at a month at 4oz he stayed at 4oz for months! Maybe till 3-4 months I started introducing foods around 4-5 and he went up to 6oz around 6 months. Right now he's about to turn 11 months and I make the 8oz bottle but only drinks 6-7oz.

I'd start giving her 3 or until she spits the nipple out