Affleck, Garner expecting second child?

Jennifer Garner and Ben Affleck are expecting their second child together, say reports.

According to US tabloids, Garner is three months pregnant and the couple are "ecstatic".

Speculation about a possible pregnancy mounted earlier this week when the actress was photographed wearing baggy clothes allegedly covering a baby bump.

Garner, who married Affleck three years ago, gave birth to daughter Violet in December 2005.

A spokesperson for the couple has refused to confirm or deny the allegations.