Hiya Hannah,im a 34aa, 5ft 7 & size 8… went to see Mr C & he offered me 300cc unders max as he said he would struggle to fit 340 & it would also look very fake on me…
Im hoping to be measure a C cup…however people say that you measure bigger than you look…
I will be very happy with anything to be honest.. im sick of being flat! 
A D cup bra looks huge to me!