When a man is impregnated by another man. Usually unintentional.
Person A: Yo, can I borrow some of your lotion, my normally soft supple skin is unusually dry due to the changing season.
Person B: Uhhh....not unless you want to get pregmant.
Person A: Oh.
A female who has had a sex change then become pregnant.
Dude, did you hear about that Pregmant wierdo, Thomas Beatie