Help Mommies... How many ounces????

J • Mother of 5, Married to my best friend 7/30/15. Ready for everything God has in store for us! 😍😘
Hi Mommies! 
My baby boy is 14 weeks and 5 days. Unfortunately he is in the hospital getting tubal feeds. They have decided to up his feeds to 4 oz every 3 hours... just wanted to touch basis to see what your 14 and 15 eeek olds eat? (breast milk)