Jolie adopted Cambodian orphan Maddox in 2002 as her marriage to Billy Bob Thornton was falling apart and was happy to raise him as a single mother.
In 2002, Jolie said, I'm drawn to kids that are already born. I think some people are meant to do certain things, and I believe I'm meant to find my children in the world somewhere and not necessarily have them genetically.
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However, after meeting current partner Brad Pitt and adopting a second child, Ethiopian-born Zahara Marley, Jolie began to ponder becoming a mother biologically.
She tells Reader's Digest magazine, "Before I met Brad, I always said I was happy never to have a child biologically. He told me he hadn't given up that thought.
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"Then, a few months after (Zahara) came home, I saw Brad with her and (Maddox), and I realised how much he loved them - that a biological child would not in any way be a threat. So I said, 'I want to try.
