23/11/2013 15:11 GMT | Updated 22/05/2015 06:12 BST

David Tennant Reveals Baby News On Jonathan Ross Show

David Tennant to be a dad for the third time!PA

Former Doctor Who David Tennant has revealed that his wife Georgia Moffett, 28, is pregnant with their second baby.

David, 41, announced he was to become a dad again on The Jonathan Ross Show on Saturday night.

The couple already have a daughter, Olive, who was born in March, 2011.

Georgia, who is the daughter of former Doctor Who Peter Davidson and actress Sandra Dickinson, also has a son, Tyler, 10, who she had when she was 16. David adopted the little boy when the couple married in December, 2011.

The family are notoriously private and reportedly ask interviewers not to quiz them about their relationship, with David saying in 2009 that 'relationships are hard enough with the people you're having them with, let alone talking about them in public.'

However, he told chat-show host Jonathan that their nappy news was 'lovely, very lovely. It's exciting.'