Hi Lisa, I’m 7 weeks post op and a 34d, I still wear the medium MACOM, it is loose at the bottom but I think that’s so it doesn’t rub your incisions, I can fit my fingers under mine too, but it is still very supportive. I’ve tried other sports bra’s and bra’s, although they might fit tighter at the bottom, I don’t get the support. I hope this helps, maybe speak to the nurse again though if you’re really worried x