According to TMZ, she started telling people at the Day N Night Fest in Anaheim, CA, earlier this month.
This is a developing story.
We have reached out to Kylie's rep to confirm the exciting news.
People magazine reported Jenner is due to deliver the baby in February. "Her family really likes him".
It has been cited by reports that Jenner has recently only been posting pictures of herself from the chest up or old photos to her well followed social media channels (the reality star turned beauty entrepreneur has almost 98 million Instagram followers).
Jenner discussed her high-profile breakup with Tyga on a recent episode of her E! reality series "Life of Kylie".
Kylie and Travis have been together since April, and have been spotted at a lot of events together throughout the months.