A place or condition for an unbelievably attractive woman who got pregnant and therefore, undesirable to males seeking a one night stand or casual intercourse.
Dan: When I get back from Europe I'm going to ask out your friend, Jill.
Maria: that's so sweet of you! She hasn't had many dates since she got knocked up. Where are you taking her??
Dan: I'm not!! I didn't know she had a kid on the way -- she's officially in pregatory if you ask me!