"Today" show anchor Savannah Guthrie revealed Tuesday morning she's pregnant with her second baby, due in December.
Guthrie, 44, is married to Mike Feldman, a founding partner and managing director of communications firm The Glover Park Group and a former senior adviser and traveling chief of staff to Vice President Al Gore. The couple's first child, Vale, was born in 2014.
Guthrie said she will won't be traveling to Rio to cover the Summer Olympics due to concerns over the Zika virus, which has been blamed for severe birth defects.
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NBC had announced in April that Guthrie would co-host the opening ceremony of the Rio Games on Aug. 5.
"The doctors say that we shouldn't because of the Zika virus so I'll miss it. You're going to have to go to female beach volleyball without me, Matt. Try to carry on," Guthrie teased Matt Lauer on "Today."
The first pregnancy came as a surprise as Guthrie and Feldman prepared to get married. They announced they were expecting to guests at their March 2014 wedding and Guthrie shared the news on "Today" a few days later.
Guthrie shared the excitement of being able to become a parent at an age older than many moms in a blog post on Tuesday.
"The thought of getting to add to our family now is beyond every hope, dream and prayer I have ever had. It is not simply double the joy — it is joy multiplied infinitely," she wrote.
Guthrie's daughter broke the news to friends and family with a bright yellow T-shirt that read "I was here first" on the front and "Proud big sister" on the back."