"There's only a certain amount you can do once you have a children and a family. They say your art gets affected when you have a family, but I would much rather have a family," she told the magazine. 
Kidman also revealed that Urban had filmed her giving birth to their child, and that she credits the success of their marriage being based on the fact that they met later in life.
"We're lucky we met late in life. The sadness of that is that we can't have six kids together, but the greatness of that is we've gone A-Z with all that other stuff, so now we're totally present for this," Kidman explained.