The Hangover star Justin Bartha is set to become a dad.

Sources claim the actor's new bride Lia Smith is pregnant.

The couple exchanged vows in Hawaii at the weekend (04Jan14) and now insiders claim the personal fitness trainer is expecting the newlywed's first child.

One onlooker tells, "She had her hand on her stomach most of the time and looked like she had a little bump."

Bartha proposed to Smith in May (13).