Credit: Marlo Thomas on Twitter

It’s a good thing Savannah Guthrie spilled the beans she’s expecting because the mama-to-be’s baby bump wasn’t going to wait much longer for its big debut. In a new photo posted by author and Today Show guest Marlo Thomas, Savannah shows off her growing bump.

Wearing a tight black and white dress, the 42-year-old newlywed grins widely into the camera as Marlo points to the bump. Not that we needed the extra help to spot Savannah’s bun in the oven!

Rubbing @SavannahGuthrie's baby bump for luck this morning on the @TODAYShow!,” Marlo captioned the fun photo. Savannah later replied, “Aww!! xo Marlo!”

Savannah and her new husband, Michael Feldman, wed just last month over St. Patrick’s Day weekend and they took the special day to tell their family and friends they were expecting a new addition to the party. At the time of the announcement, Savannah said she was four months along so we’re inching toward the six-month mark at this point.

“It was an explosive moment,” a source told People of the big reveal at her wedding. “Everyone was on their feet, cheering.”

How exciting! We can hardly wait to welcome baby Savannah (or Michael, as we’re not sure on the sex yet) later this year!

Sources: Marlo Thomas on Twitter, Savannah Guthrie on Twitter, People

Elisabeth Kramer is an Assistant Editor at Wetpaint Entertainment and our resident Downton Abbey expert. Follow her on Twitter and Google+!