Hey, baby is 3 weeks old today (but 7 weeks premature) I’ve been using size 0 mam teat but feel like his been on 60ml for a while now and he doesn’t always finish his bottle but seems like his having to suck quite hard, how do I know when to move him to size 1? X
if he takes longer than 20 mins or falls asleep while feeding then i would try sizing up xx