ABOVE: Josh with his wife Fergie

"We don’t know whether it's a boy or a girl and I honestly don’t care," Josh continues. "I couldn’t care less one way or the other. Ultimately I’d like to have one of each but if it doesn’t work out, oh well… Like Ferg’s mother said, 'Happy, healthy and holy.'"

And what of Julianne, who's been dating presenter Ryan Seacrest for nearly two years - does she have any plans for starting a family? I expect a non-committal answer but instead Julianne is exuberant.

"Oh God, absolutely. First and foremost, I was on this Earth to be a mom," she says. "That’s literally the greatest achievement I’ll ever have. I have 17 nieces and nephews so I’m getting a lot of practise.

"It’s good right now that it’s just practise and I can send them home that I don’t have to have that responsibility yet. Having two dogs is good right now. Josh will say something else because he’s seen me having fun these last few months, but I really am a homebody. I like having friends and family over and doing homely things."

What of those sleepless nights, isn't that a turn-off?

"The struggle that you have to go through to wake up and be there for your kid in the middle of the night, that makes you appreciate the wonderful times so much more," Julianne says, confidently. "It f**king sucks in the middle night but it makes those precious moments and those little smiles so much better."

Josh's baby news is great timing, I say, as he plays a very convincing father in Safe Haven. The film sees him take on the role of Alex, a widower who is devoted to his two kids.

"Yeah and that’s who he is in real life," says Julianne, who plays his on-screen love interest Katie. "On set, everyone was like, ‘Where’s Josh?’ and it was like, ‘Well, he’s playing hot potatoes with the kids.’ He’s going to be a great dad."

Josh Duhamel: On fatherhood and family