Gabi, it is likely that you will go down a bra size (or more) once you are no longer bfing. Unfortunately with a a few years and a couple of pgs under your belt they well might not be quite what they were before. It can feel really good to get some nice new bras once your babies have weaned, but don't get them straight away because it can take 2 -3 months for your breasts to settle down to their post-bfing size.