Holly Willoughby is driven "mad" by pregnancy rumours.

Holly Willoughby

Holly Willoughby

The 36-year-old television presenter - who has Harry, seven, Belle, six, and Chester, two, with her husband Daniel Baldwin - is growing increasingly frustrated by speculation she is pregnant, according to her 'This Morning' co-host Phillip Schofield.

Phillip told the Daily Mirror newspaper: "The minute she's off poorly everyone says she's pregnant. If we do an item with drinks she doesn't like and she doesn't have one, it's 'ooh she must be pregnant'. It drives her mad."

Holly had to take a couple of days away from the show earlier this month after falling ill.

Speaking on the show at the time, Phillip said: "Holly is not well. There is a bug in the Willoughby-Baldwin household, and Belle [her daughter] is ill again. So she's not well and also having to cope with poorly children as well."

Meanwhile, Holly previously revealed she is keen to expand her brood because she is addicted to giving birth.

She said: "You only hear one side of the story and that's not very helpful, and lots of women really enjoy it. Don't get me wrong, there is pain, but it is a pain in a different way.

"I love giving birth weirdly - although actually I shouldn't say that it's weird. I don't want that area of my life to be over because it makes me sad to think I'd not be be doing it again. I love being pregnant and I love having babies."

And the blonde beauty decided to release a self-help book about parenthood to share advice with other mums and dads based on her own experiences as a mother.

She previously explained: "When I had my first, Harry, I couldn't believe there were so many things I wasn't expecting. I kept thinking, 'Why has no one told me about this? Why is this a ­massive secret?' I thought then that one day I'd write a book called 'It Worked For Me' and put down all those things I've stumbled across or realised.

"By the time I had my third child I felt like I had a really good spectrum of different children and different ­experiences and it felt like it was time to write it all down."