Josh Duhamel says he's "terrified" of fatherhood.
The actor is expecting his wife Fergie to go into labour with their first child at any moment.
He appeared on US talkshow The Tonight Show on Wednesday night, where he even took his mobile phone onto the stage with him in case he got the call while being interviewed.
"I've been lost in babydom all summer. It could literally happen at any minute. You know, I gotta tell you, I'm a little bit nervous," Duhamel admitted to host Jay Leno.
"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. So, I just got that. So, if this interview sucks, you know why."
Duhamel and Black Eyed Peas star Fergie seem to have prepared almost everything in anticipation of their new arrival. The 40-year-old continued to reveal they have even hired a dog whisperer to prep their pet for the family's imminent newcomer.
But the couple are keeping quiet on their choice of name for the new bub.
Duhamel previously told E! News that Kim Kardashian and Kanye West stole their original favourite by calling their daughter North.
"I grew up in North Dakota so we were going to name it North but Kim and Kanye took that," Duhamel told E! News."It's a fairly traditional name but you don't hear it very often. It means a lot to both of us and part of it is a family name. We're not telling anybody because we don't want to hear it. No matter what you choose, people are going to have their comments."