DS came to a point in my pg where he would look at me sadly and say "it's empty"! He kept trying, though, bless! He kept suckling, milk or no milk, the whole way through and went from one feed a day by the end of it to getting it whenever he could when my milk came in.
We got through the sensitivity and when that passed is when my supply dropped off. DS turned 3 during my pregnancy, so was pretty attached to the idea of Babu by then and I didn't think he'd give it up. He still hasn't given it up and he turned 4 two and a bit weeks ago