Caitlyn Jenner talks about why Kylie Jenner hid her pregnancy

"How did she do for her labor?"

Kylie Jenner loves being a mom to baby Stormi but according to Caitlyn Jenner it was an uphill battle.

"She's always wanted to be a mom but when she called me up it was a bit tough for her 'cause, obviously, she's not been married", the Olympian shared on ITV's Loose Women on Thursday. "She just kept saying, 'I just don't feel any pain.' And you'd see these contractions [on the monitor going] like insane, and she would just go, 'I'm not feeling it!' And I was like, 'This is really weird.' She was such a trooper".

'I delivered the baby!' she added jubilantly.

The reality star announced the child's birth after months of speculation surrounding her secretive pregnancy.

Kylie Jenner chose to keep her pregnancy a secret despite rumors that she was expecting.

That being said, Caitlyn revealed she still believes "you're better off waiting and there's no rush".

"I didn't know that", a surprised Kim said.

"I understand you're used to me bringing you along on all my journeys".

Not only did Kylie build a beauty empire with her Kylie Cosmetics but this year, in particular, was very kind to her as she was even on the cover or Forbes magazine, being dubbed as one the youngest self-made billionaires in the world.

Kevin Mazur via Getty Images Kylie Jenner and Travis Scott, parents of Stormi, inside the 2018 MTV Video Music Awards at Radio City Music Hall.

'Pregnancy has been the most lovely, empowering and life changing experience I've had in my entire life and I'm actually going to miss it.

She was at her daughter's bedside the moment her granddaughter Stormi was born.

In a 2016 interview with Australia's "Today Extra", the mother revealed that it was her then boyfrined Disick who had filmed the birth that was aired on the popular reality show aht the "KUWTK" cameras.

They grow up so fast!