Sorry if this is a personal question? But just how "plus" sized are you? Old Navy goes up to XXL, I know Target Maternity fit me last pregnancy & I'm around a size 18. Motherhood had plus sizes too, but their stuff can be cheaply made & they have a crappy return policy. www.imaternity.com
had plus sizes that fit me when I was pregnant 5 years ago. I found some cute stuff on sale then. I tried checking out their website just now & but its running slow.