LO born 2/8, jaundice next day and had to supplement, two weeks later had to introduce bottle and reintroduce formula to get him back up to birth weight. We were suppose to give him 4-5 oz 8 times a day. I cut back on breast and pumped to make sure he was getting enough. Most times it was close to 5 oz in bottle. He's been spitting up a lot since the increase. Two weeks ago we got the okay to cut back on serving size since he got to birth weight. Dr told me 24-30 oz a day for 4 week old. I went to lactation consulatant appt and LO got little over 3 oz total from the breasts. However, he wasn't satisfied and was hungry when we got home after our 10 minute car ride. He will fall asleep on breast after 15-20 minutes with relaxed hand, detach him to wake up 5-15 minutes later hungry. I usually have to give him a bottle of breastmilk.