Plus size maternity/nursing bras?

I am plus size, usually wearing an 18 pant and a 1-2x top. My chest isn't huge tho, and all the maternity or nursing bras that fit around my 38-40 wide bra size, come with D or bigger cups, and I'm only a B or C. I know when baby gets here and I start breast feeding my chest will get larger, but my Victoria Secret bras just are not comfy anymore. Any of you ladies know of a brand or store that sells better fitting bras. I prefer nursing as they'll be more useful later.