for the first couple of weeks you will be fine with sports bras from asda, tesco, primark ect. there’s no point in spending more because they will change sooo much.
I would most defiantly recommend shock absorber for exercise when you are ready to do so after your op. I found that the best is the racer back as it gives you strong support both above and below your boobs. All of the shock absorber bras are great because i have more than one, but for alot of exercise i’d defo go for racer backs.
hope this helps!