The Duke of Cambridge has said he is looking forward to having children.

William also revealed he finds it strange reading speculation about whether his wife Kate is pregnant.

Interviewed by an American news channel, William said he was still deciding if he would take another tour or duty with the Royal Air Force, or leave the military to assume royal duties full time.

He said: "I'm still trying to decide. It's a really difficult one because I really enjoy my time in the Air Force and I'd love to continue it. But the pressures of my other life are building. And fighting them off, or balancing the two of them, has proven quite difficult." He added: "More importantly, I'd rather like to have children. So that's the key thing really."

In the interview with ABC broadcaster Katie Couric, William also revealed one of his regrets is that his mother Diana, Princess of Wales will never meet Kate. Diana was killed in a Paris car crash in 1997, four years before William met the duchess at St Andrews University where they both studied.

The couple wed in a glittering ceremony at Westminster Abbey last April and the duke said it was difficult getting married without his mother with him. "I'm just very sad that she's never going to get a chance to meet Kate."

The duke's poignant tribute to Diana was echoed by his brother Prince Harry, who described her as having the "best seat in the house" during the wedding service.

In the interview ahead of this weekend's Diamond Jubilee celebrations, William spoke about marrying his bride without his mother being present.

He said: "It was very difficult. I was sort of mentally prepared so I didn't want any wobbly lips or anything going on. It's the one time since she's died, where I've thought to myself it would be fantastic if she was here.

"And just how sad really for her, more than anything, not being able to see it. Because I think she would have loved the day and I think, hopefully, she'd be very proud of us both for the day."