Notes:

Source:
http://saburox.deviantart.com/art/The-Legend-of-Zelda-Preggo-Midna-474390064

Was also in the Internet Paraphilia gallery, but this also counts as an example of "hyper pregnancy" (being preggo to the point of wondering "damn, how many kids are you going to have?!") it's also an example of body inflation, albeit via "natural means."