Martin and Paltrow have been together for a year

Days after the couple announced Paltrow was pregnant, a county clerk-recorder's office confirmed the pair had tied the knot.

A spokesman said: "The only thing that I can say is that they are married but we cannot say the date or where it happened."

Paltrow's agent Stephen Huvane said the couple had no comment to make.

Earlier this week the couple applied for a marriage licence in Santa Barbara, California, which would allow them to be married within 90 days.

Oscar winner Paltrow, 31, and 26-year-old Martin announced in a statement last week they are expecting a baby next summer.

The speculation grew after Paltrow hinted to UK chat show host Michael Parkinson that she wanted to marry Martin, but suggested she was waiting for him to ask her.

The couple have been together for a year after meeting backstage at a Coldplay concert.