A Pea in the Pod Maternity Jeans.
I thought they only sold there own brand, but turns out they also sell all the high end brands (True Religion, 7 for all Mankind, etc.) and the top inside tag inside still will be A Pea in the Pod tag. Here is an example of the tag you will see.Here are a pair of 7 for all Mankind maternity jeans that I recently found from 'A Pea in the Pod'
So next time when you come across a pair of these jeans do some more searching. Look at the back pocket, or a deeper inside tag or the buttons to find out the exact brand. Even if they are A Pea in the Pod's own brand they still might be worth it.
The most common pair of maternity jeans that you will come across are Mimi Maternity, not worth the purchase to resell on eBay.