Jennifer Aniston is "really upset" Angelina Jolie is pregnant.

The former 'Friends' star, who divorced Brad Pitt in October 2005 following five years of marriage, is said to have taken the news of Angelina's alleged pregnancy extremely badly.

A source close to the actress said: "Jennifer is putting on a brave face, but inside she is really upset. She wasn't prepared for how she'd feel when she saw the pictures of Angelina and her bump.

"It took her by surprise because it was further proof of just how much Brad has moved on with his life compared to her."

Jennifer, 38, also resents Angelina because she never had a child with Brad.The source added to Britain's Star magazine: "Jennifer is desperate for kids. She can feel her biological clock ticking and is scared that she has left it too late. She keeps saying that she wishes she'd had kids with Brad and that, if she had, maybe things would have worked out differently.

"Splitting up with Brad was the hardest thing Jennifer ever went through, so hopefully she'll get over this latest hurdle. She's made of strong stuff."Angelina - who has three adopted children, Maddox, six, Pax, four, and Zahara, three, and a 20-month-old biological daughter, Shiloh, with Brad - is rumoured to be pregnant with twins.

STUMBLEUPON DIGG IT
RELATED PHOTOS AND ARTICLES
Jennifer Aniston - 29th Annual Peoples Choice AwardsBrad Pitt - 2004 Cannes Film Festival - Troy PhotocallBrad Pitt - 2004 Cannes Film Festival - Troy PhotocallAngelina Jolie - Ocean's 13 Los Angeles PremiereBrad Pitt - CineVegas Film Festival Opening Night Screening of Ocean's ThirteenAngelina Jolie - A Mighty Heart - New York City Movie Premiere - ArrivalsBrad Pitt - The 32nd Annual Toronto International Film Festival - Audi Arrivals at the Dinner for 'The Assassination of Jesse James by the Coward Robert Ford'
Angelina To Remember Her Mother14th Annual Screen Actors Guild Awards - Arrivals
Sources Confirm Angelina Jolie's PregnancyBrad Pitt Is The Ultimate Idol
Jennifer Aniston, Angelina Jolie To Host Same PartyCourtney Cox Buys Her Friend A Set Of Wheels