While Kardashian is slamming stories such as the above for being untrue, she's also likely referring to an article from The Sun which claimed that Caitlyn was told about Kylie's pregnancy a while ago. Tuesday, September 26, TMZ persists and signs: at just 20 years old, the little sister of Kim Kardashian lends well to becoming a mother, and this will actually be a little girl.
One thing to note, Kylie isn't even showing yet - nor has she confirmed or denied any of the baby gossip.
Kylie has yet to address the pregnancy report on her social media, instead preferring to share a throwback picture on her Instagram page on Monday in which she showed off a washboard stomach in a crop top and low-slung jeans and promoted her cosmetics.
Okay well we'll just sit here and patiently wait for either Kylie or Travis to speak out about the speculation.
She tweeted the link with the caption, "This sounds like a very fake story".
The insider continued, "Of course Kim is happy for Kylie; she's going to support Kylie 100%, no matter what".
The statement came shortly after reports that Caitlyn was "shocked and disappointed to learn Kylie is pregnant", a source close to the ex-Olympian told Hollywood Life.
While it's not known for sure that they are dating, given that the 27-year-old had his arms wrapped around her waist as they wandered around the theme park, it suggests they're more than just good friends.
The babies will be the same age, and will probably be very close.