Hey, im sort of similar stats, 5ft 4, 9.5 stone and size 8. I went from a 32a.
Your surgeon may not be willing to do overs as it all depends on how much skin/breast tissue you have and whether it will cover the implants.
I had mine two weeks ago as 325cc unders and feel next to no pain now, unless lifting heavy things. Id say im currently a 32dd or 32e Hope this helps 🙂