Hi @chazz,
I’m a 32b naturally and my nurse told me to go for the same bra size as I am now, so sent me a ‘Small’, but when I tried it on it was crushing my ribs on the last clasps, so I swapped them for a ‘Medium’ which is perfect and I can go bigger and smaller with all the clasps giving me options for when it may get tighter.
Hope that helps x