An act in which a woman deliberately and without the knowledge of her partner gets herself pregnant in the hopes of securing a permanent relationship with a male of her choice.

Sometimes this is used to help the undecided party become more committed to the relationship.
He has fallen victim to pregnatal trappage

She’s fallen pregnant after a month? That’s got to be a case of Pregnatal Trap-page!

He said he is going to leave? Time for Pregnatal Trappage!
by BubbleButt1989 October 12, 2017