My nurse suggest 36 e …so I stocked up on them , different ones .. I got some lonsdale ones from sports direct 2 for 12 quid they were comfy but only medium impact , the marks n spencer was the 22 quid I think but like I say I cudnt zip it up and found it tight under my arms as I was really swollen on my right boob under my arm for a few days .. Babe the worst part for me was the bloating n the trapped wind my boobs felt great , I felt like I cudnt breath at one point , the bigger bra really helped , I’ve had it on 2 days now …feel like the bloatin n swellin is goin a little bit now …you’ll be absolutely fine ! I was dreading the recovery but I’ve been ok .. X x