Heartache and misery form the usual bass line of country music, but Keith Urban insists the tender love and devotion of his young family is even more inspirational.

With talk that Nicole is pregnant again gaining traction as she displays a fuller figure and drops out of a scheduled visit to Kenya, the Aussie singer reveals how marriage has turned his life around and helped him overcome his well-publicised drug and alcohol demons.Keith, 42, adds that their bond is something neither he nor Nicole, 42, take for granted.

Indeed, he counts their marriage as one of his greatest accomplishments – it’s only surpassed by the birth of their daughter, Sunday Rose, who turned one in July – and says he has juggled his touring commitments so he can “say goodnight to my girls” as often as possible.

Keith also reveals that it’s a family he and Nicole thought they may never have.

They feared they had left their run too late after concentrating on their respective careers.

Now, with plans to return to Australia for Christmas to be with family, he says he is ready to end 2009 on a high note.