Prince William has confirmed Kate Middleton is not pregnant and that the Royal family will not be welcoming a new baby any time soon.

The Duke of Cambridged cleared the air about his wife's rumoured pregnancy on St Patrick's Day, on 17 March, according to Hollywood Life.

During their visit to the Irish Guards barracks in commemoration of St. Patrick's Day, the couple was asked if another baby was on the way, based on rumours surrounding Kate Middleton's pregnancy.

"Apparently, the new parents still have their hands full with infant, 7-month-old Prince George, and want to wait until considering having a second child," said the report.

"Maybe one day. One's enough at the moment," Prince William reportedly explained to Regimental Sergeant Major Ray Collister during the holiday event.

Guardsman Glenn Tierney also managed to get an update on how young Prince George was doing during the St Patrick's Day visit.

"I asked them all about George, I'm nosey like that," Tierney told the Daily Mail.

"They said he's doing really well and he's very busy crawling and eating."