THis is a P&R because work is hell, but here goes:
I can't pump enough at work for Sparky to have all BM bottles at daycare (4 4oz bottles). It just isn't happening, and hasn't been for a while. It doesn't help that he stopped STTN, wakes up every 2 hours, and won't go to sleep unless I'm nursing him so I don't have anything to pump at a night session. I'm down to a stash of less than 20 oz. We started supplementing with formula (Baby's Only Organic) one or 2 bottles at daycare, depending on how much I could pump the day before, and 1 at night because he gets really frustrated when my boobs are empty and he wants to go to sleep, but he just nursed when we got home an hour or so before bedtime.
We have just been replacing BM with formula oz for oz. Now I'm thinking that we shouldn't be doing that. My rationale is that supposedly BM changes based on the baby's caloric needs and a BF baby never takes more than 32ish oz in a day. However, formula is static at 20cal/oz and doesn't change so FF babies have to get increasing amounts of formula as they grow.I'm now wondering if he is essentially getting LESS food than when I am sending BM.
I can't find any info online about how to calculate how much to supplement him. Maybe there is some long algorithm, but I can't find it. For those of you who have supplemented, how did you do it? 1:1 BF to Formula or some other method? Am I overthinking this?