Looking for some advice. My son Caleb is 2 weeks old he was born at 6lbs 14oz and was at 6lbs 8oz when he came home. We had his first appointment at 8 days and he was 6lbs 10oz but now at 15 days old he is well BELOW birth weight at 6lbs 6oz. He does not breastfeed I exclusivity pump for him as we were unable to get him to latch despite numerous attempts and numerous lactation consultants and nurses. I have plently of milk so we have NO supply issue. He takes 1.5oz every 2.5-3 hours during the day he refuses to take anymore then this at 1 time. The pediatrician told me he must show at least a 2-3oz gain by Monday or he needs to go on formula asap. This is obviously not what I want since I know breast milk is best for at least the first 6 months. My first son didn't ever need formula in the beginning nor did he lose weight, by day 6 he was almost birth weight so this issue is new to me. They are classifying my 2 week old as failure to thrive right now and I'm devastated. He is healthy, he is very alert when he's awake, easy to wake up, has at least 6 wet diapers a day, poops with almost every diaper change.. they want him to take no less then 2oz per feeding and they want him fed every 2 hours. But my issue is he just won't do it, he takes the 1.5 and that's it he will flat out refuse anymore.. I'm at a loss and I really don't know what to do here. I feel like I'm failing him and failing as a mother here..