A representative for the “Keeping Up with the Kardashians” alum confirmed to People magazine that she had a boy.
Scott, 30, reacted to the announcement with a series of heart emojis: “💙🤎🤎🤎🤎🤎🤎.”
Meanwhile, sister Kourtney Kardashian wrote “Mommy of two life ❤️🙏🏼🙏🏼,” while mother Kris Jenner added, “Angel Pie.”
Jenner and Scott already share daughter, 3-year-old Stormi Webster, People reported.
0 of 21
Photos: Kylie Jenner through the years Kylie Jenner attends the 2020 Vanity Fair Oscar Party at Wallis Annenberg Center for the Performing Arts on February 9, 2020, in Beverly Hills, California. Keep clicking to see more photos of Jenner through the years. (Toni Anne Barson/WireImage)
Photos: Kylie Jenner through the years 2000: Caitlyn Jenner, then known as Bruce Jenner; wife Kris; and children Kylie and Kendall appear at the premiere of Walt Disney's "The Emperor's New Groove" at the El Capitan Theater in Hollywood, California, on Dec. 10, 2000. (Scott Nelson/AFP via Getty Images)
Photos: Kylie Jenner through the years 2005: Mimi Rogers, Cris Judd and Kylie Jenner during Dream Foundation's "A Day To Dream" on July 24, 2005, at Santa Barbara Zoo in Santa Barbara, California. (Eric Isaacs/FilmMagic)
Photos: Kylie Jenner through the years 2007: Kylie Jenner, Kim Kardashian and Kendall Jenner pose for a photo at the "Keeping Up With the Kardashians" viewing party at Chapter 8 Restaurant on October 16, 2007, in Agoura Hills, California. (Jeff Vespa/WireImage)
Photos: Kylie Jenner through the years 2008: TV personalities Kendall Jenner and Kylie Jenner arrive at the KIIS-FM's 2008 Wango Tango concert held at the Verizon Wireless Amphitheater on May 10, 2008, in Irvine, California. (Noel Vasquez/Getty Images)
Photos: Kylie Jenner through the years 2009: Kylie Jenner attends 102.7 KIIS-FM's Wango Tango at Verizon Wireless Amphitheater on May 9, 2009, in Irvine, California. (Jason LaVeris/FilmMagic)
Photos: Kylie Jenner through the years 2010: TV personalities Kendall Jenner, Kim Kardashian and Kylie Jenner arrive at the 2010 Teen Choice Awards at Gibson Amphitheatre on August 8, 2010, in Universal City, California. (Steve Granitz/WireImage)
Photos: Kylie Jenner through the years 2011: TV personality Kylie Jenner arrives at the 2011 People's Choice Awards at Nokia Theatre L.A. Live on January 5, 2011, in Los Angeles. (Jason Merritt/Getty Images)
Photos: Kylie Jenner through the years 2011: Kylie Jenner walks the runway at the Abbey Dawn by Avril Lavigne Spring 2012 fashion show during Style360 on September 12, 2011, in New York City. (Slaven Vlasic/Getty Images)
Photos: Kylie Jenner through the years 2012: TV personalities Kendall Jenner (left) and Kylie Jenner walk the runway the Evening Sherri Hill Spring 2013 Mercedes-Benz Fashion Week Show at Trump Tower on September 7, 2012, in New York City. (Michael Stewart/FilmMagic)
Photos: Kylie Jenner through the years 2014: Model Kylie Jenner attends the 2014 Billboard Music Awards at the MGM Grand Garden Arena on May 18, 2014, in Las Vegas. (Kevin Mazur/Billboard Awards 2014/WireImage)
Photos: Kylie Jenner through the years 2015: Kylie Jenner attends the grand opening of the Sugar Factory American Brasserie on September 16, 2015, in New York City. (Jamie McCarthy/Getty Images)
Photos: Kylie Jenner through the years 2016: Tyga and Kylie Jenner attend the Kanye West Yeezy Season 4 fashion show on September 7, 2016, in New York City. (Jamie McCarthy/Getty Images for Yeezy Season 4)
Photos: Kylie Jenner through the years 2017: Kylie Jenner attends the "Rei Kawakubo/Comme des Garcons: Art of the In-Between" Costume Institute Gala at Metropolitan Museum of Art on May 1, 2017, in New York City. (George Pimentel/WireImage)
Photos: Kylie Jenner through the years 2018: Travis Scott (left) and Kylie Jenner attend the Heavenly Bodies: Fashion & The Catholic Imagination Costume Institute Gala at The Metropolitan Museum of Art on May 7, 2018, in New York City. (Kevin Mazur/MG18/Getty Images for The Met Museum/Vogue)
Photos: Kylie Jenner through the years 2019: Travis Scott and Kylie Jenner attend the Travis Scott: "Look Mom I Can Fly" Los Angeles Premiere at The Barker Hanger on August 27, 2019, in Santa Monica, California. (Tommaso Boddi/Getty Images for Netflix)
Photos: Kylie Jenner through the years 2020: Kim Kardashian (left) and Kylie Jenner attend the 2020 Vanity Fair Oscar Party hosted by Radhika Jones at Wallis Annenberg Center for the Performing Arts on February 9, 2020, in Beverly Hills, California. (John Shearer/Getty Images)
Photos: Kylie Jenner through the years 2021: Travis Scott and Kylie Jenner attend the The 72nd annual Parsons Benefit at Pier 17 on June 15, 2021, in New York City. (Craig Barritt/Getty Images for The New School)
