Re: Low Milk supply @ end of day
Is your LO 5 months old? If so, that is earlier than the AAP suggests starting solid foods, though most pediatricians seem to continue to advise parents to follow the antiquated rice-cereal-at-4-months timeline. Your pediatrician was very correct in that rice cereal provides very little nutrition and is just a spoon feeding practice tool. If you think it is making him fussy and gassy, then stop, and try it again at a later time. His belly might not be ready for it yet.
If I were you, I would tell your MIL that you don't want to hear any more opinions about bottle feeding, in a nice way, of course. Your husband thinks he is doing fine and is handling the bottle feeding well. MIL doesn't need to be planting seeds of doubt in your mind, or your husband's mind. Sometimes people give advice that they think will be helpful, but it is hurtful, and you should feel free to tell them to cut it out.
My little man was born 12/17/2010.
Baby girl was born 4/30/2014.