The Little Britain star, and now dad-to-be, announced the news on his Twitter page, telling fans:
"Some wonderful news. My beautiful wife Lara is pregnant. We are having a baby! It is due next year and we both couldn't be happier. Dx"
The couple then released a statement, saying:
"We're very excited to announce we are expecting our first child. We're both absolutely thrilled but ask you to please respect our privacy during this precious time."
David, who is a judge on Britain's Got Talent, and model Lara married two years ago.
Huge congratulations David and Lara!