The Intern star, 33, and her actor husband, 34, are expecting their first child, E! News reports.
“Anne is in her second trimester and feeling great,” a source says.
The expectant parents were wed in September 2012 after four years of dating.
“I’ll start with one healthy kid but I’d like to have a few naturally and adopt. I gotta get on it, you know?” Anne has said. “I’d like to have as many as I can afford, not just financially but in terms of time, because you want to make sure each one feels special.”
In another interview, the Interstellar star has said, “I want to be a mother, and I anticipate loving my children quite fiercely.”
She added: “I think about it all the time, though it’s a silly thing to think about because the kind of mother I’ll be depends on the kind of children I have. I can’t wait to meet them.”