Hours after news broke today of Marissa Mayer’s surprising appointment as CEO of Yahoo, Fortune’s Patricia Sellers shares a shocking, exclusive extra detail. Mayer is pregnant, due to deliver a boy on October 7:

Mayer’s husband is Zachary Bogue, a lawyer who traded practicing law to invest in “big-data startups,” she says…

Mayer first disclosed to the Yahoo board that she is pregnant in late June, in a meeting with Michael Wolf, a member of the board’s four-person CEO search committee. A meeting with the search committee followed, and then Mayer met with the full board last Wednesday. None of the Yahoo directors, she says, revealed any concern about hiring a pregnant chief executive. “They showed their evolved thinking,” says Mayer, who got the phone call last Thursday that she was the board’s choice to be CEO.

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