Josh Duhamel thinks Fergie's baby bump is ''so cute''.

The hunky 'Safe Haven' actor's wife is expected to give birth to their first child imminently, and he thinks the Black Eyed Peas singer is more adorable than ever because of her pregnancy belly.

He said: ''My wife has handled it beautifully. She looks so cute; her belly is way sticking out now. She feels good, she's trying to enjoy the whole process, feeling it kick around, getting the nursery ready.''

The 40-year-old star says Fergie, 38, is ''close'' to giving birth and they are busy readying themselves for the new arrival.

He told 'Extra': ''We're close. Now we're just in the middle of getting ready for baby.''

Josh and Fergie have been firmly tight-lipped about the gender of their first child, and while they know, they want to keep it a ''secret''.

He added: ''It's between us, it's sacred ... it's our little secret.''

The actor previously gushed how he couldn't wait to become a father - even if it means sleepless nights looking after his newborn.

He said: ''Everyone is saying, 'You better sleep now [because] you're not going to get any when the baby's here', [and] 'Oh, your life is over after that', [and] 'Oh, it's the most beautiful thing ever, but it's tough.'

''I look forward to putting the attention [on the baby]. All the love that you have for something like that is what makes it so great and I think we are both ready for that.''