Hi! I had surgery 5 and a half weeks ago, I was a 32A and got 350CC overs and bought the M&S zip up sports bra in a 32D because I thought i would just be going up a couple of sizes really. Anyway I’ve just been measured and it turns out I’m a 28FF now haha. The point is that the sports bra is technically too small for me but I’ve had absolutely no issue with any of them and the nurse even said it wasn’t too small when I asked (: I think you can be pretty lenient with a sports bra – I wouldn’t stress too much! I’d probably go with a 34D or DD x