Radio 1 DJ Fearne Cotton explains why she's been wearing all those baggy smocks

Fearne Cotton has finally announced that she’s pregnant.

The Radio 1 DJ, 31, is dating Ronnie Wood’s son Jesse, who’s already dad to children Arthur and Lola with ex Tilly Wood.

We’ve been studying Fearne‘s baby bump for a while now, but haven’t been able to say a word.

Jesse and I have some news!!!!!Fearne Tweeted yesterday evening and on her website confirmed, ‘Jesse and I are very happy to announce we are having a baby.

‘We are over the moon, morning sickness aside (me, not Jess) and looking forward to the little Cotton Woods arrival.’

Fearne is papped daily on her way into work and has swapped her tiny T-shirts and skinny jeans for flowing shirt-dresses, cocoon coats and baggy jumpers.

NEW PICTURES Fearne Cotton at the Baftas 2012>>

SEE PICTURES Fearne Cotton attends Glamour Women Of The Year Awards 2011>>

PICTURE GALLERY Fearne Cotton and celebrity splits 2011>>