Mel - Funny you say this as I was thinking on Friday it must just about be time to change K's teat. I checked out the packet in the chemist (been using Pigeon brand) and actually noticed the 'small' teat says 2-3mnth+ .... do you HAVE to change teats as they get older... I'm guessing you would as why else would they make em???
Whats the difference?
Sash - difference is the flow - so as they get older, the newborn teats are apparently too slow for them and they get frustrated with it. Which is what we thought was happening cos she's been off her bottles a bit lately - even daycare thought so too - but NOPE.. still newborn for her.
I wouldn't switch his teats until you think he is getting fussy with the flow. We replace ours every 2 months as well, saves them from getting old and slipping into the bottle neck when they suck (we use the pigeon ones too)

Vic - no babies in march for you huh We'll start trying in June.... well.. we'll see what happens if we move or not

Better go have lunch and check on Miss M... just as I wrote up her normal routine before- she has gone and bloody changed it on me today.. lol