Sandy and her....?

The details from People:

"He's just perfect, I can't even describe him any other way," Bullock reveals exclusively in the new issue of PEOPLE, announcing that she is the proud mother of Louis Bardo Bullock, a 3½-month-old boy, born in New Orleans. "It's like he's always been a part of our lives."

Bullock, 45, and husband Jesse James, 41, began the adoption process four years ago and brought Louis home in January but decided to keep the news to themselves until after the Oscars. Their close friends and family – including James's children Sunny, 6, Jesse Jr., 12, and Chandler, 15 – were essential in keeping the adoption a secret.

Then, just 10 days after the March 7 Oscars, Bullock and James separated following reports James had cheated. Bullock says she is now finalizing the adoption as a single parent.

A rep for Bullock confirms the star filed legal papers seeking to end her marriage, but declines to specify in what jurisdiction they are filed. Says Bullock of her decision to divorce: "I'm sad and I am scared."