Kari Byron - Discovery Channel Mythbuster

Yes, Kari Byron's pregnant with her first baby whom she had actually announced February 25, 2009 . In fact, she had already given birth to this baby girl named Stella Ruby on June 28, 2009. No confirmed report yet if Kari Byron's pregnant with her next baby.

Kari Byron is a San Francisco-based artist and television host, best known for her featured role on the Discovery Channel's MythBusters, along with fellow Build Team members Tory Belleci and Grant Imahara. She is married to artist Paul Urich.
Photo from: Discovery Channel