Josh Duhamel says his newborn son has made his life better.

The 'Safe Haven' star's wife Fergie gave birth to their first child, Axl Jack, on August 29 and the couple are completely besotted with the new addition to their family.

The 40-year-old actor tweeted on Tuesday night (03.09.13): ''Sorry about the absence. I truly appreciate all of your well wishes. All is good! In fact, never better. Much love, JD.''

Black Eyes Peas star Fergie, 38, delivered the baby boy, who weighted seven pounds, 10 ounces, in Los Angeles and they named their son after the lead singer of her favourite band Axl Rose from Gun N' Roses.

A source told UsMagazine.com: ''Fergie is a huge Guns 'N Roses fan -- one of her career highlights has been performing and recording with Slash -- so Axl makes perfect sense.''

Shortly before Axl's arrival, Josh admitted he was nervous about becoming a father.

He said: ''You know, I gotta tell you, I'm a little bit nervous. I thought that I was going to be good. I thought that I was ready for this, and I'm a little bit terrified. I'm excited and terrified, because I am responsible for this little thing. Forever.''