Gwyneth Paltrow is refusing to deny reports that she is pregnant with her second child.

The star’s mother, Blythe Danner, sparked the rumours after being asked whether she was looking forward to becoming a grandmother again.

"Yes, I am," Danner replied, quickly adding; "Well, I think so. Oh, well… I have not checked lately – but I am a very happy grandmother of one."

Paltrow’s publicist explained last night, "We have no comment to make. If and when she is pregnant and they want to come out with an announcement, they will do so."

Gwyneth and husband Chris Martin already have a 16-month daughter, Apple.