Nicole Kidman's baby water

Sep 24, 2008, 9:35 GMT

Nicole Kidman says special Australian "fertility water" helped her conceive.

The 'Moulin Rouge!' actress - who welcomed daughter Sunday Rose, her first child with husband Keith Urban, into the world in July - credited the liquid from the town of Kununurra, West Australia, where she was filming new movie 'Australia', for aiding her and six other women on set to fall pregnant.

Nicole - who also has two adopted children, Isabella, 15 and Connor, 13, with ex-husband Tom Cruise - said: "I never thought that I would get pregnant and give birth to a child but it happened on this movie. Nothing happened in a small way on this film. We had heat and torrential rains and equine flu and then I got pregnant.

"Seven babies were conceived out of this film and only one was a boy. There is something up there in the Kununurra water because we all went swimming in the waterfalls, so we can call it the fertility waters now."

The 41-year-old actress - who stars alongside Hugh Jackman in Baz Luhrmann's epic film - also admitted she was surprised at how easy her labour was.

She added to The Australian Women's Weekly magazine: "I'm so lucky I'm so tall, so I carried small and also, I have to say, I had a birth that I was blessed with, a labour that was very good and a baby that was very good to me in that regard

"They say that an easy labour is genetic, so I'm grateful for that because it was beautiful and Keith was my rock through it all. To be given this again is a beautiful thing. To have raised Bella and Connor since I was 25 and now to be able to do it again at 41... wow!"