Stewart Cook/Peter Brooker/REX
Amy Adams and fiancé Darren Legallo welcomed 7-lb. daughter Aviana Olea Legallo on Saturday in Los Angeles, her rep tells PEOPLE exclusively.
"Mom and baby are home and doing great," says Adams's rep. "Everyone's healthy and happy."
Shortly after announcing her pregnancy in December, the actress said she and Legallo planned to find out the sex of their baby on the way.
"I thought about waiting and I just don't think that's really my personality," Adams, 35, said.
With nine months to prepare for baby, the Julie and Julia star also made sure to take care of her own needs.
"It’s been good for me," she told USA Today. "I’ve benefited a lot from taking some downtime and working on friendships and really reconnecting with my fiancé."
Reporting by JULIE JORDAN
Leave your best wishes for Amy and Darren at PEOPLE Moms & Babies!