30/09/2014 12:47 BST | Updated 20/05/2015 10:12 BST

Holly Willoughby Gives Birth To Baby Boy

LONDON, ENGLAND - MARCH 17: Holly Willoughby launches her bedding collection for BHS during the Ideal Homes Show at Earl's Court Exhibition Centre on March 17, 2014 in London, England. (Photo by Stuart C. Wilson/Getty Images)

Holly Willoughby has given birth to a baby boy named Chester William.

The This Morning presenter and her husband Dan Baldwin welcomed their third child on Monday and announced his arrival on Twitter.

More on Parentdish: Find out what Katie Hopkins thinks of Holly's baby name choice

Holly, 33, told her 4.88 million followers:

Celebrity friends Tweeted back their congratulations.

Amanda Holden, who's covering Holly's maternity leave on This Morning wrote:

And Holly's co-presenter Phillip Schofield added:

Davina McCall wrote:

Coleen Rooney wrote: "@hollywills congratulations!! Fantastic news!! Lots of love cxx,' while Rochelle Humes added: 'How lovely Congrats to you and Dan xx."

Holly only started her maternity leave from This Morning on September 18. It was thought her baby was due in October.

Holly and Dan, who married in 2007, announced they were expecting another child in March.

Holly wrote at the time: "Surprise Surprise (and it was a surprise!!) I'm really happy and excited to tell you that Dan and I are expecting baby number 3!! (sic)."

Last year, Holly said: "I would like another baby, so let's wait and see. I've always thought I'd have a big family so if I'm lucky enough to fall pregnant again, great.

"It's just a question of when and if it happens. You can't set aside time specially."

According to our Baby Names Generator, Chester means 'lives at the camp of soldiers' and William means 'resolute protector'. The couple also have five-year-old son Harry and three-year-old daughter Belle together.

More on Parentdish: Holly Willoughby and her sister Kelly talk to Parentdish

Pregnant Holly Willoughby gets a send-off from This Morning