Radio 1 DJ Sara Cox has announced her third pregnancy, by breaking the news first on Twitter and then on her live radio programme.

She wrote: "How terribly modern of me to say this on twitter! Wanna share with you just before I do it live on air: I'm pregnant & over the moon xxx."

The baby is expected to be born in the spring of 2010, but until then take a look at the other stars with bumps or babies this year.