My little boy is nearly 5 months old and exclusively breastfed. However, at about 19lb, he takes a lot of filling and seems particularly hungry in the evening. He fusses around for ages as if he wants milk but there's just not enough coming out for him. On the odd occasion of offering a bottle of expressed milk in the evening, he'll happily take an extra 4oz or so after I've fed him, but I don't want to make a habit of that as I know it'll only send my supply in one direction. I keep thinking about introducing a bottle of formula in the evening just to see if it'll help fill him up (he normally wakes every 1-2 hours in the evening and definitely seems hungry). I'd rather keep going with EBF if I can but am I being mean for not giving him a bottle of formula if he really seems to want the extra milk?