In a real-life version of “The Switch,” JENNIFER ANISTON may finally be pregnant AND ex-hubby BRAD PITT may be the father!

The baby bombshell was revealed by a Pulitzer Prize-winning columnist who divulged details of a secret plan to freeze Brad’s sperm as part of the couple’s 2005 divorce deal.

“It’s incredible to think that Jen might have kept a sample of Brad’s sperm locked away all this time,” said a friend. “But it was always Jen’s dream to have a baby with Brad.”

 New York Times columnist  Maureen Dowd broke the baby story, writing that she’d spoken about Brad and Jen’s divorce with top Hollywood agent Sue Mengers, Jen’s close friend who died in October.

“After Brad Pitt left Jennifer Aniston for Angelina Jolie,” revealed Dowd, “Mengers told me that she advised her be­loved Jen to ask Brad for some of his sperm.”

Insiders were stunned at Dowd’s claim because Jen, 42, has been dating Justin Theroux, 40, for nearly a year, and the two are rumored to be trying to start a family.

While Jen’s representatives have neither confirmed nor denied the story, sources close to the "Friends"beauty claim she may even be expecting twins.

“With in vitro fertilization, that’s always a possibility,” said the friend.