Definitely try down a back size and up a cup size. Return anything that you can. I think it can also depend on the style of bra. I'm a 10 and a 30F. I always wear the same style bra (panache tango ii balconette), It makes them round and high and pushes them forward. Not the divide and conquer of some styles, and certainly not a minimiser. I honestly do not look huge. It probably helps that I'm hour glass shaped and short legged, so long in the torso. For me the best look is quite fitted stretchy t shirts which show my narrow rib cage and stomach which is quite acceptable for someone 4 months after a 2nd CS, nothing too low cut, and obviously no polo necks. Avoid long necklaces or scarves that draw attention to my boobs. For me it's about covering them up but not hiding them.