Kourtney, 44, announced the pregnancy news at the Blink-182 concert in Los Angeles.
Kourtney held up a sign reading: "Travis I'm Pregnant," as seen in a video they posted in a joint Instagram. She later kissed the drummer to celebrate the news.
(Also Read: Kris Jenner opens up how Travis went to Kourtney’s dad grave and asked for her hand)
Kourtney's pregnancy comes one year after the Poosh founder tied the knot with the rocker in front of friends and family in Italy, eonline reported.
The couple is entering a new chapter together as they prepare to welcome a baby. As fans have seen on their Hulu show The Kardashians, Kourt and Travis have been trying to have a baby together for some time now.
The baby will join Kourtney's three children from a prior relationship with Scott Disick: Mason Disick, 13; Penelope Disick, 10; and Reign Disick, 8. Meanwhile, Travis co-parents Landon Barker, 19, and Alabama Barker, 17, with ex-wife Shanna Moakler. He's also stepdad to Atiana De La Hoya, 24.
Kourtney and Travis became romantically involved in late 2020 after nearly a decade of friendship.
They made their relationship Instagram official in February 2021 and were engaged by that October.