Nicole Kidman, who married Keith Urban in 2006, had already adopted two children with former husband Tom Cruise but she had explained last year she had had two miscarriages in their relationship, which lasted ten years.
Nicole Kidman recently finished playing the role of a British aristocrat in Baz Luhrmann’s epic Australia.
Nicole Kidman’s publicist Wendy Day said: "Nicole Kidman and Keith Urban confirmed today that they are expecting a baby. The couple are thrilled."
In November of last year, Nicole Kidman was quoted in a woman's magazine as saying she would love to have a baby with Keith Urban.
Keith Urban is one of country music's most successful stars and he was named vocalist of the year at the Annual Country Music Association Awards for three consecutive years.
