The 'Alias' actress has long been rumoured to be expecting her second child with husband Ben Affleck, and despite close friends speaking out, the couple had so far refused to comment.

However, she revealed the happy news to Access Hollywood on Wednesday, saying: "Thank you, we're so excited obviously. We've been through it before. It's all good, it's great. I'm really excited."

Jennifer - who has a two-year-old daughter Violet with Ben - at first remained coy, joking that: "Oh I'm not pregnant. I just had a lot of carbs for breakfast. It's just ? what do they call it? A breakfast pouch? Bunch?"

She then admitted she had enjoyed recent speculation about the reason behind her expanding stomach, adding: "It always makes me laugh when people say, 'Is she?' 'Isn't she?' It's like eventually you will know, so just chill out for a minute."

Close family friend Victor Garber, who starred alongside Jennifer in 'Alias' and officiated at the couple's wedding in 2005, first revealed the actress was pregnant last month. When asked if recent speculation was true and Jennifer was pregnant, he replied: "Yes she is."