Nicole Kidman says her children suffer because of her career.

The 'Moulin Rouge' star, who is expecting her first child with husband Keith Urban, admits her demanding work schedule takes its toll on her two adopted kids when they travel the world to see her.

Nicole said: "The children of actors give up a lot because they learn their parents are going to be emotionally committed to something else. There are bad things about having a parent in Hollywood. I ask them to travel the world and be close to my side."

Nicole, who has a 13-year-old son Connor and 15-year-old daughter Isabella with ex-husband Tom Cruise, is expected to give birth in July.

The 40-year-old actress recently revealed she hopes her unborn baby will be the first of many for her and Keith.

She said: "I just want to have this child safely and happily, and then we will see. Keith and I would really love to have a big family. But I'm so happy at the moment, I couldn't ask for anything more really."

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