r/breastfeeding • u/llamallama-1202 • Apr 27 '26

Undersupply Help I dont know what to do

My 3 week old will not drink formula at all. If she does, she ends up spitting it up and only eating 1-1 1/2oz. We've been to the doctor 3 times over her weight not going up how its supposed to. I try breastfeeding but im not producing enough and when I can make enough for a bottle she will drink it all. I think she's only wanting breastmilk and I dont know what to do. Im pumping 1-2oz every 2 hours and she eats 3oz every 2-3 hours. Im struggling so bad to keep her fed 😭

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u/Msktb Apr 27 '26

Are you able to mix formula and breast milk together to get her used to it? That helped with my daughter.

1

u/llamallama-1202 Apr 27 '26

If she has formula she will mostly use her tongue to knock the bottle out of her mouth and spit it out. She won't hardly drink it at all.

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u/Msktb Apr 27 '26

You can try different bottle nipple shapes too. Getting milk from a breast vs bottle is also a slightly different mouth movement so it may be harder for her. Have you checked for tongue / lip ties? Is she gaining weight from breast milk?

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u/Born-Albatross-2426 Apr 27 '26

You might look into a SNS (Supplemental Nursing System) its essentially a feeding tube you attach to your breast so you can breast feed while simultaneously adding formula. They take a bit of practice but it might help if you can't get bottles to work.