Jennifer Garner, Ben Affleck Expecting Third Baby

Couple says they are 'thrilled' to have a sibling for Violet and Seraphina.

Jennifer Garner and Ben Affleck are making room for one more baby. The couple confirmed that they are expecting their third child.

They confirmed the news to The Associated Press, simply saying that they are "thrilled" to have another baby. The pair, who married in 2005, already have two daughters, Violet, 5, and Seraphina, 2.

"She's always wanted three kids," a source told

href=""> of Garner. "This was her plan all along."

In addition to a growing family, Garner and Affleck still have busy film careers to juggle. Garner, who recently starred in the "Arthur" remake alongside Russell Brand, has a number of films on her docket, including "The Odd Life of Timothy Green," which she just promoted at Disney's D23 convention, and "Butter." Meanwhile, "The Town" director Affleck will next star in Terrence Malick's forthcoming untitled project and is attached to the thriller "Argo."

Garner spoke to earlier this year about how she manages to balance work and family. "You have to have a great nanny, and you have to have a supportive husband," Garner said. "We figure it out day by day. It's always messy, and it's never as glamorous as people think it is, but we get through, and as long as the kids are happy, it's all good."

As for fatherhood, in an interview back in 2008, Affleck shared that he hoped he's a good dad. "I hope so. I think we all like to see ourselves as good dads, but there's also that fear, 'Oh, I don't want to be like my father,' or, 'I hope my kid doesn't turn out like me.' You know, I have those feelings too," he told the U.K.'s Mirror. "So the key is optimism."