I wouldn’t buy anything too exciting. Definitely don’t buy any post op proper bras until at least 6 weeks. I was wearing a 34e post op m&s sports bra and when I got back into the gym started wearing it. Around month 2 I burst the front of the bra open lol. I now measure 32ff/34f even 32g in some bras so definitely only by soft stretchy, sports type post op bras until 6 weeks.