Kylie Jenner flashes stomach amid news that she's pregnant

Kylie Jenner took to Instagram over the weekend to seemingly respond to news breaking that she's pregnant -- and she did it in the most sly way possible.

Jenner, 20, celebrated her best friend Jordyn Woods' birthday on Friday at the Malibu Wine Safari, the same day that reports surfaced that she was expecting her first child with her rapper boyfriend, Travis Scott. Instead of publicly confirming -- or denying -- the countless reports, Jenner simply shared a photo of herself slightly lifting up her shirt to reveal part of her flat stomach.

SEE ALSO: Kris Jenner addresses Kylie Jenner pregnancy rumors

99 PHOTOS
Kylie Jenner's sexiest Instagrams of 2017
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Kylie Jenner's sexiest Instagrams of 2017
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day at Mommy's ๐Ÿ’›
happy birthday @stassiebaby to my sister for life โญ๏ธ shine bby xx
thanks for all the birthday wishes!
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The star is reportedly four months pregnant, and she definitely isn't showing yet. Though she's clad in a baggy black tee and loose-fitting red sweatpants, it's still pretty clear that Jenner doesn't have a visible baby bump.

In another shot from the weekend, the "Life of Kylie" star is seen posing with her girlfriends in a short silk robe that isn't as loose-fitting, but she still doesn't seem to be showing.

yesterday was cute. hope you had the happiest of birthdays Jordy. Love you forever ever and beyond..

A post shared by Kylie (@kyliejenner) on

mornings :)

A post shared by Kylie (@kyliejenner) on

Jenner, who only started dating Scott in April, was also seen supporting him on Saturday in Las Vegas, where she was photographed wearing an outfit similar to the one she wore on Friday: Sweatpants and an oversized t-shirt. See more on that outing in the video above.

SEE ALSO: Kylie Jenner couldn't wait to have kids 'someday' in 2013 -- watch!

Nobody in Kylie's family has confirmed or denied the rumors. At a show at Milan Fashion Week over the weekend, though, her mother, Kris Jenner, was asked about the newly-surfaced reports that her youngest child was pregnant, and Jenner remained coy about the topic.

โ€œIt wouldnโ€™t be the family if something didnโ€™t happen every single day," she said.

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Kylie Jenner and Travis Scott together
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Kylie Jenner and Travis Scott together
HOUSTON, TX - APRIL 25: Houston rapper Travis Scott and Kylie Jenner watch courtside during Game Five of the Western Conference Quarterfinals game of the 2017 NBA Playoffs at Toyota Center on April 25, 2017 in Houston, Texas. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and/or using this photograph, user is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Bob Levey/Getty Images)
HOUSTON, TX - APRIL 25: Travis Scott and Kylie Jenner courtside during Game Five of the Western Conference Quarterfinals game of the 2017 NBA Playoffs at Toyota Center on April 25, 2017 in Houston, Texas. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and/or using this photograph, user is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Bob Levey/Getty Images)
HOUSTON, TX - APRIL 25: Travis Scott and Kylie Jenner courtside during Game Five of the Western Conference Quarterfinals game of the 2017 NBA Playoffs at Toyota Center on April 25, 2017 in Houston, Texas. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and/or using this photograph, user is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Bob Levey/Getty Images)
HOUSTON, TX - APRIL 25: Houston rapper Travis Scott and Kylie Jenner watch courtside during Game Five of the Western Conference Quarterfinals game of the 2017 NBA Playoffs at Toyota Center on April 25, 2017 in Houston, Texas. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and/or using this photograph, user is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Bob Levey/Getty Images)
HOUSTON, TX - APRIL 25: Travis Scott and Kylie Jenner courtside during Game Five of the Western Conference Quarterfinals game of the 2017 NBA Playoffs at Toyota Center on April 25, 2017 in Houston, Texas. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and/or using this photograph, user is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Bob Levey/Getty Images)
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