Dragonfly Magic are fantastic They are a little bulky on the smaller baby but we've been using them since R was 4 months (I think...not too sure as memory is fuzzy) and they are still going strong and she's 20mths. The only thing that might not work is that if you have a super chunker because they are a tad narrow in the crotch. They are an AI2 and the design is unique in that they have a clever use of elastic so they gather up snug on the legs and as bub grows they just go with them.

I have also been using blueberry pockets since R was 6 weeks old!