Nicole Kidman's husband Keith Urban has been putting the pressure on his wife to have another baby, according to U.K. reports.

The Australia star gave birth to her first child Sunday Rose in July 2008 after reportedly trying to get pregnant with ex-husband Tom Cruise for years.

And now, according to sources, Keith is eager to keep the baby ball rolling so Sunday Rose has a little baby brother or sister.

A source tells Now magazine, "It's unbelievable how much Keith has changed since Sunday came along.

"He loves it [being a father].

"Keith says Sunday’s helped him to conquer his demons and he’s been happy to play the house husband while Nicole's travelled the world promoting her movie Australia.

"He's loving it so much that he’s putting pressure on Nicole to have another child already."

See Nicole in full bloom below