The couple, who will celebrate their five-year anniversary on Sept. 1, are stationed in Vail, Colo., while they await their first son, who is due via surrogate in Denver.
Bill, 41 and Giuliana, 37, have spent their last days before becoming parents exploring nature, indulging in delicious meals and more.
"Heading out for a hike with @GiulianaRancic here in Colorado. Can't go too far. Waiting for that call any day now!" Bill Tweeted on Aug. 21.
On Aug. 25, the couple geared up and went fly fishing. "Gone (fly) Fishing!!" he wrote on Aug. 25, sharing a photo of the couple decked out in hiking boots and fishing pants.
When a follower asked Giuliana "[On a] scale from 1 to 100 how excited are you for the baby?" she happily Tweeted in reply, "Is one million an option?"
Courtesy Bill Rancic
On Aug. 26, Giuliana shared a photo of the view from their hotel, Tweeting, "How gorgeous is our view from our patio at Ritz-Carlton Residences? Can't wait to come back w/Baby R." And the next day, she posted a snapshot of the couple enjoying a towering piece of strawberry shortcake, "This is livin'!!!"
It's been a long road for Bill and Giuliana, who suffered breast cancer, a miscarriage, and underwent a double mastectomy, but the couple is eager to start their life as a family.
"That kid is going to be one very special kid, because not only did he save your life," Bill said to Giuliana last month, "But as a result of this whole process – had we never gone through IVF, we would have never found out [about her cancer.]"