Barb might be able to confirm/deny this, but I think that in hot weather, not only do BF babies demand feed more often, but the composition of the milk changes slightly to hydrate more. Just keep up your own fluid levels otherwise you can end up feeling a bit bleugh (yes, that is a technical term ).

You won't overfeed her, and at two months old, she should have you wrapped around not just her little finger, but all of her fingers, that's what a mum is for, and you are doing an awesome job.

E is 9 1/2 months old and I've just started giving him a sippy cup to play with (and occasionally drink from when he's not using it to bash things with), mostly so that he can start to get an idea of drinking from something other than a boob, as he's never had EBM.