Ready or not, it’s baby time for Bill and Giuliana Rancic! The couple, expecting a son via surrogate, are headed to Denver in anticipation of their little guy’s arrival.

“On the plane to Denver!! Baby watch has officially started!!” the dad-to-be tweeted Monday.

Though baby boy Rancic will be born in Colorado, where their surrogate resides, he’ll soon be traveling with his parents — by bus!

“We’re going to go from Colorado to Chicago and then spend September and October in Chicago. And then we’ll come back to the West Coast,” Bill Rancic explained previously to Us Weekly. ”I’ve got a tour bus taking us from Denver to Chicago.”

“Everyone is pumped!” the 41-year-old added. “Not just our family but so many people. We’re so lucky. So many people have been pulling for us and following our journey. This has all been magical for us

photo: PR Photos