My son was born on 08/20/2020 so he is 4 months old. He was 8lbs 14 oz at birth and nurses like a champ. At 1 month he was 50th for weight at two month he was 30th and at 4 months I was told he has fallen to the 12th. He currently is 13lbs 14.5 ounces. So he has only gained 3 oz in a week. The dr is kind of concerning me on his weight gain. This is my third breastfed baby but first with this issue. He’s asked me about supplementing but I know for sure I don’t have a supply issue as when I’m at work for 9 hrs I can pump 12-15 oz. my son hates bottles and I’ve been trying to work with him but today I was home with him and tried to only feed him a bottle and he only took in 7oz in 9 hours. I should also add he drinks anywhere from 4 oz-10oz at daycare. It’s like he hates the bottle and would rather not eat. Anyone have any advice or have dealt with this. I hate feeling like it’s my fault he’s not gaining.