Posting this here in /f/ because the only two examples I've found, are furry in nature.
I've seen topics in which people are pregnant with animals, with objects, and with full-grown adults. But what about being pregnant… with hypers?
I've only seen two examples of this. One being T & A by Art-Act, this even has a bit of story to go with it, found at http://www.furaffinity.net/view/5093286/