Caitlyn Jenner confirms daughter Kylie, 20, is expecting a baby

Caitlyn Jenner has confirmed her youngest daughter, Kylie Jenner, is pregnant.

The former athlete, 67, was the first member of the family to formally confirm the Keeping Up With The Kardashians star is expecting her first child according to DailyMail.

While it's believed the make-up entrepreneur is expecting a baby girl with her boyfriend of five months, rapper Travis Scott, 25, she is yet to publicly comment on the news.

Caitlyn Jenner (L) and Kylie Jenner pose for a photo at the backstage inspiration wall at the 2015 Glamour Women of the Year Awards. Photo / Getty

A representative for Caitlyn - formerly Bruce - told The Sun when asked how she found out about her daughter's pregnancy: 'All I can tell you is that it was some time ago.'

On Monday Ryan Seacrest, who is a producer on the family's E! reality show, reached out to momager Kris Jenner on air when he was co-hosting Live With Kelly And Ryan from New York City to ask about the beauty's condition. He didn't get a no.

It was during the opening of the morning talk show when Ryan reached for his cell phone and texted the mother of Kylie.

He was hoping she would confirm that Kylie was pregnant. But what he got back, 'Kylie's not confirming anything.'

(L-R) Kendall Jenner, Caitlyn Jenner and Kylie Jenner pose for a photo earlier this month. Photo / Getty

But Kylie has shown off her tummy on social media.

Over the weekend she pulled up her shirt and touched her tummy as she posed with her friend Jordyn Woods. It was too difficult to tell if she had a bump or not.

The star was also seen with Travis going to his iHeart Radio performance. Again she wore a baggy T-shirt.