As of January 2014, no information has been released that confirms or indicates that Kari Byron is pregnant with her second child.
Paul Urich and i am assuming you mean Kari Byron!
Byron
Kari Byron
Paul Urich
In the episode Cold Feet.
season 5
Kari Byron, a television personality from the program 'Mythbusters' has worked on the show since the year 2003. There are no reports of her leaving the program anytime soon.
She is now, but if you mean in 2009/2010, she was on maternity leave
Kari Byron has 1 child
Kari Byron. The new blonde one is Jessi Combs. (Season 6+)
She slipped in ballistics gel, and dislocated her knee.
Yes, Kari Byron married to Paul Urich in 2006