Mamasan Maternity apparel is the mad notes. I have this dress, (ahem, not in that size), and I wore it until I popped, and then I wore it some more! I still wear it. It beats the pants off some floral tent with a big bow on the belly. And it fit my size 14 ass with room to spare. I wore it with a little cap sleeve tee under it, but you can rock the strappy look if you like. I spilled food on it, got breast milk on it, washed it a bunch, and it still holds up.
If I won the lottery when I was pregnant I would probably own multiples of everything in Mamasan's store. I love it all.
Bonus, they also have a line of cute punk baby gear, here!