Hey Emma, im a 32A and will likely be getting 250-300cc hp round unders (not had a consultation yet but after months of researching I will be somewhere around this cc size) I’m aiming to go up about 2 cup sizes I want to stay proportionate to my petite size, I will see what the surgeon says, so 275cc will likely take you to a D/ DD
275cc can be considered a small size(but since you’re petite it is bigger for you), if you want to be a bit bigger talk to your surgeon about doing a bit more say 300cc instead, 25cc is only a small amount, just make sure you a happy with the size you chose! Would you be less disappointed going a little too small or a little too big? Good luck with your op! xx