Jenna Bush Hager is going to be a mom of three.

The 37-year-old television personality announced on Monday's episode of "Today" she's expecting another baby with husband Henry Hager. 

Hager and Henry are already parents to two daughters, 6-year-old Margaret and 3-year-old Poppy. Hager told her girls about the new baby Sunday on Easter.

"I'm only telling because Mila and Poppy found out yesterday in their Easter baskets," she told co-hosts Savannah Guthrie, Dylan Dreyer and Craig Melvin.

"They told the man behind me on the airplane; they told the people at church."

Hager said she's shocked but grateful to be pregnant. 

"I'm very pregnant, so I don't know how I hid this," she said. "We're thrilled! It is a shock -- it's a lot. But we're grateful. [The girls] are so happy to where they're telling strangers." 

Hager and Henry will celebrate their 11th wedding anniversary May 10. Hager shared a family photo on Instagram with Henry and their daughters Sunday.

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"Happy Easter!! Love and peace from ours to yours!!" she captioned the post.

Hager joined Hoda Kotb as a "Today" fourth hour co-host this month following Kathie Lee Gifford's departure.

Kotb announced last week she adopted another daughter, Hope Catherine, with boyfriend Joel Schiffman.

Photo credit: Jenna Bush Hager/Instagram