Jennifer Garner and Ben Affleck: Second Baby?

Jennifer Garner and Ben Affleck may be expecting their second child.

The 'Catch and Release' actress was reportedly seen leaving a doctor's office sporting a clearly visible baby bump.

A source told New Weekly magazine: "She was very happy and glowing. She touched her stomach for a moment. She looked pregnant."

The couple - who have a 16-month-old daughter Violet - are said to be "thrilled" with the news.

A second source said: "They were hoping to have another baby fairly soon so that Violet would have a sibling to grow up with."

"She's an affectionate, happy child. Jen thinks she'll love being a big sister."

Jennifer recently admitted she was "intoxicated with love" for her daughter and has often said she would like more children.