I am a definite 36 dd. This bra is sized a bit smaller than that. I had read other review that said that but figured mine would work. I can barely hook the last row of hooks and its tight. The cups are closer to the right size, but there's no 'give' in the material that nursing moms need. I kept the 2 I bought for later on when I'm not nursing as often and the 'sisters' aren't quite as huge ;) I would go up atleast in the band size when ordering. I do like the bra as a whole, just wish it would fit!! :) ps good for you for nursing!!! Keep up the good work:)