The former Dancing With the Stars hoofer was spotted stepping out for a hike in Los Angeles on Tuesday wearing a gray zip-up sweatshirt and cropped black leggings, along with a baseball cap and shades.
No sign of a baby bump just yet, though.
Then again, it was only last week that the 34-year-old blond beauty revealed she was with child.
The exciting news was announced on the heels of Keibler tying the knot with tech entrepreneur Jared Pobre in a surprise sunset ceremony on a beach in Mexico a few weeks earlier.
The pair's nuptials were actually a surprise to their families, who were vacationing with them in Mexico.
"Marriage is the ultimate bond of love and friendship," Keibler told People. "It means putting all your faith and trust into a person that you can't help but believe is your soul mate. Someone who has all of your best interests at heart; someone handpicked for you, to help you grow and be the best person that you can be. Jared is all of this for me."
Pobre lovingly added, "I'm extremely excited about starting a family and building a future with Stacy."