Hi,
I am a size 36H...not fun. I LOVE the medela seamless softcup nursing bra at breakoutbras.com. It is very comfortable, true to size, easy to exchange and doesn't give you "torpedo boobs" or "uni-boobs" that some larger bras do. I have been nursing for 8 1/2 years and gone from every size between 34 DD to 36H...this is the best bra! Try buying only 1-2, as you may experience size changes throughout your nursing experience. And remember...nothing too tight or constricting and the underwire end should land well under your armpit. Best of luck to you!!!!!