Kate Middleton and Prince William
Prince William and Kate leave after attending the Christmas Day service at church in Sandringham, eastern England, December 25, 2015.Reuters

Kate Middleton and Prince William are busy parents. And while they watch their son Prince George and daughter Princess Charlotte grow up, speculations and rumours about the Duchess of Cambridge's third pregnancy have gone wild. But it looks like the mother-of-two is out to debunk all these rumours.

The Duchess of Cambridge in the last couple of months has found herself in the middle of wild pregnancy rumours about her third royal baby, with some media outlets also claiming that Prince William's wife is actually carrying twins. Now, the Duchess hasn't officially announced anything, neither has she denied any claim, but she is dropping major clues which clearly prove that she's not pregnant.

Recently, Kate Middleton showed off her sporty side and flaunted her tennis skills when she joined Andy Murray's mother Judy at Craigmount High School in the Scottish city for a tennis workshop. The Duchess was looking all athletic as she got in to her leggings and sneakers to put her tennis skills to test. Not just hitting the balls, the Duchess also showed off her racket-wielding skills.

In yet another incident, which is contrary to the her pregnancy rumours, the Duchess was spotted in yoga pants and sneakers, shopping in Chelsea at a fitness-wear shop — Lululemon wearing. Well, clearly it looks like all these are just the Duchess' way to debunk and hush all those pregnancy rumours.

Meanwhile, Prince William visited the Welsh Rugby Charitable Trust, and while having a conversation with the guests, he joked about how he has been putting up with the Princess Charlotte and Prince George sibling drama.

"No broken bones yet but they're trying. Running around, pushing things, jumping. Please tell me it gets easier," the Duke of Cambridge told ABC News.

"Charlotte is very easy, very sweet but all the fathers say, 'Just you wait. When they get to 9, 10, 11, they go crazy," he added.

But despite all this, he said he is looking forward to the coming years. "There will be some drama," he said.