Jenna Bush Hager may have just announced her pregnancy, but eagle-eyed Today show viewers might've picked up on a few clues over the past five months

Right next to “first daughter” and “Today co-host,” Jenna Bush Hager can add “master of secrets” to her résumé.

The third-time mom-to-be shocked Today viewers and colleagues alike Monday when she revealed that she and husband Henry Hager are expecting their third child, a baby boy.

A source tells PEOPLE that Bush Hager, 37, is “more than five months” along — something that made her ability to keep mum extra masterful.

“Everybody is super impressed that Jenna could hide the pregnancy for more than five months,” the insider reveals. “It’s really hard to hide anything beyond the first pregnancy.”

Nearly a week after Hoda Kotb announced she had adopted a second daughter, Hope Catherine, her new 10 a.m. co-host surprised her co-anchors by dropping the news that she and Hager, 40, are expecting baby No. 3.

“Yes, I’m pregnant!” Bush Hager said on Today, leaving Craig Melvin gasping. “I’m very pregnant. I don’t know how you missed this! I’ve needed seven or eight sports bras.”

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Jenna Bush Hager Easter Instagram
Jenna Bush Hager and family
| Credit: Jenna Bush Hager/Instagram
Jenna Bush Hager
Jenna Bush Hager

Bush Hager may have only come forward with her baby news after she was well into her second trimester, but for eagle-eyed fans who’ve been tuning in to the Today show over the past few months, there have seemingly been a few clues that could’ve tipped them off.

Credit: NBC

The pregnant star (who is most often seated behind a desk, potentially hiding any evidence of a baby bump on camera) has worn a variety of loose-fitting garments during her recent time on the show, as well as made use of accessories like long scarves and the opportunity to pose behind others (including her own kids!).

Following the departure of Kathie Lee Gifford from NBC earlier this month, a fan congratulated Bush Hager on her new 10 a.m. co-hosting gig with Kotb, 54, by gifting her custom glasses filled with white wine — however, she was not shown drinking from them.

RELATED VIDEO: Jenna Bush Hager Reveals Why She Thinks Karma Gave Her Strong, Opinionated Daughters

Tyler Henry might have been the most in-tune of all, though. In March 2016 — more than three years before Bush Hager announced her pregnancy — the Hollywood Medium star stopped by Today, where he gave the now-mom-to-be a reading related to her late grandfather Harold Welch and predicted the new family addition.

“As far as children go, he’s referencing that there is going to be a little boy that will be born,” the 23-year-old clairvoyant said.

“Oh my gosh. … So I’m gonna have a baby boy?” asked an emotional Bush Hager, who is already mom to daughters Poppy Louise, 3½, and Margaret “Mila” Laura, 6.

“We’ve always thought if we had a boy, we were going to name him after [Welch],” she shared earlier in the reading, through tears. “But we haven’t had a boy yet.”