Turia Pitt has revealed she's pregnant with her first child.

Turia Pitt has faced innumerable challenges in her life. And now, she’s adding one more to the list: mum.

Yes, the 29-year-old mining engineer and her fiance Michael Hoskin are expecting their first child.

The couple shared the happy news on Sunday’s episode of 60 Minutes.

“We’re stoked. We couldn’t be happier,” Michael told host Allison Langdon.

“Turia told me the other day she’s the happiest she’s ever been in her life.”

Most Australians would be familiar with the story of Turia Pitt. In 2011, she was competing in an ultra-marathon in Western Australia when she and three other runners became trapped by a huge grass fire.

Turia sustained burns to 65 per cent of her body and has endured hundreds of operations throughout her recovery.

Yet she overcame the odds, going on to become inspirational speaker, an author, an ambassador for non-profit organisation Interplast, and an IronWoman.

In fact, the 29-year-old was three days away from heading to Nepal to trek to Mount Everest base camp – as you do – when she found out she was pregnant.

Suffice to say, she didn’t see it coming.

LISTEN: Turia Pitt talks to Mia Freedman on No Filter. (Post continues…)

“I was like, ‘stay calm, go fold your clothes and put them away’,” she recalls. She shared the news with Michael by leaving the pregnancy test in front of him as he brushed his teeth.

While it was a surprise, the pregnancy didn’t stop Turia from jetting over to Nepal to support the trekking team – though she didn’t take part in the 12-day walk.

“There’s high altitude, low oxygen, not much sanitation and if something happens to you it’s really hard to get to a medical facility,” she says.

Despite the serious injuries she sustained in the Kimberley six years ago, Turia’s obstetrician is confident she will have no issues carrying or delivering the baby.

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A post shared by Turia (@turiapitt) on May 3, 2017 at 3:03pm PDT

“When pregnant ladies say how tired they are, I kinda thought, ‘You’re just going to have to soldier on and buck up’. But it’s indescribeable,” she admits.

Turia and Michael are overjoyed about the news and the prospect of raising a child with their respective best friend.

“I know 100 per cent Michael’s going to be an amazing dad, because he had to look after me for years,” Turia says.

“He was so patient and caring, and I think those qualities, especially in a parent, are so desirable.”

After Sunday night’s announcement, Turia shared a cheeky post to Instagram on Monday morning.