Mrs Waugh, 36, said: "I've been writing every day on email and he's been phoning once every six or seven days. He was absolutely ecstatic when Harry was born - I was due to be induced the next morning. I got a call to him at Camp Bastion at about 4.30am their time. Someone got him out of bed. He could barely speak he was so excited We are going to have a quiet Christmas readjusting to being a family. Coming back from a war zone to being a family dad is quite hard." The couple have two other children Oliver, three, and Charlie, two.