While shopping last night at Fresh Direct (an online grocer), I discovered they offer an Eating for Two section on their website. (Note: to see the list, enter the ZIP "10003" when asked for a ZIP code, then you'll be redirected to the proper page. Annoying, I know.)
The section is great. It breaks down stuff to purchase by pregnancy dietary requirements, like folic acid and calcium, and then shows you sources of those requirements in various products. With a simple click, they're in your shopping cart. What a nice way to relieve some of the burden of pregnant eating. If only I'd noticed this when I was pregnant.