The couple met while taping the reality TV show The Bachelorette in 2002 and married in a televised special on ABC in 2003.
Trista tells People magazine, "We are so happy after two years of trying."
Ryan, 32, a Colorado fireman, got the news from Trista, 34, a handbag (purse) designer, when he flew into Denver International Airport on Dec. 18 after participating in a mountain expedition in Argentina.
She explains, "We had a three-hour drive back to our home from the airport and I couldn't wait to tell him, so I pulled him aside to a quiet part of the baggage claim area and told him there."
Trista, who is currently 14 weeks pregnant, adds, "I've had horrendous morning sickness, but everyone says that is a sign of a healthy pregnancy!"
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