Katie Holmes has quit her latest film role to concentrate on her pregnancy. The stunning actress has pulled out of new movie 'Shame On You' - directed by veteran actor Dennis Quaid - to avoid any stress while expecting fiancé Tom Cruise's baby, according to America's People magazine. Katie's former 'Dawson's Creek' co-star Oliver Hudson, who played Eddie Doling in the teen drama, is not surprised the actress is sacrificing her career for her unborn child. He said: 'She's a nurturer. She wouldn't be having a baby if she wasn't ready.' Earlier this week, Katie was photographed showing off a sizeable bump - sparking speculation she is more than three months pregnant as previously rumoured. The pictures of the 27-year-old beauty, relaxing in a park with Tom, show her silky blue top clinging to a bulging tummy. It was believed Katie was around 12 weeks pregnant, but one onlooker said: 'She looked more like five months pregnant than three. 'If she does have six months to go, she is going to be as big as a house by the time the baby arrives.'