"Jared and I have been blessed with the new love of our lives," Keibler, 34, gushes on her website of the daughter she and Pobre named Ava Grace.
"We've never experienced a level of joy and happiness like this before! Thank you so much for all of the special wishes and positive energy."
Becoming new parents caps a big year for new mom Keibler and 39-year-old Pobre, who just married in Mexico this past March.
"But when you're with the right person, everything changes. My epiphany happened shortly after Jared and I started dating, and once we both knew, we didn't hesitate. I just knew I was ready and that there's no one else in the world I would want to do this with."