Kylie Jenner denied rumors she's pregnant as Tyga's rumored girlfriend reportedly fought with mom Kris Jenner over her latest project, Hair Kouture.

In a Twitter post, Kylie Jenner wrote: "In (sic) not trying to become a rapper, I'm not getting married, & I'm not pregnant...."

The speculation that she is pregnant was triggered when Kylie Jenner was snapped while visiting her gynecologist last month. The 17-year-old is rumored to be dating Tyga, 25, although the two have not really addressed the issue.

Kylie Jenner and Tyga have been spending a lot of time lately, including volunteering for the 2014 Annual Thanksgiving for the Homeless by the Los Angeles Mission on Wednesday. They also went together as a couple during the Halloween bash, dressed as Chuckie the doll and the Bride of Chuckie.

Celebrity Dirty Laundry previously reported that Kim has resorted to bribing her half-sister Kylie Jenne to stay away from Tyga.

"Sources are reporting that Kylie dumped the rapper right before the party, thanks to Kimye," the site said, referring to the birthday bash by the rapper at The Argyle Bar in LA, adding that the reality star bribed her 17-year-old half-sister with "expensive gifts and clothes."

Previous rumors also alleged that Kylie Jenner threatened to elope with Tyga and not sign a prenup, which reportedly forced Kris Jenner's hand into giving her blessings for their relationship.

Apart from rumors that she's pregnant and possibly with Tyga's child, Kylie Jenner is also rocked with accusations that she's feuding with mom Kris Jenner over the hair extensions line with Hair Kouture by Bellami. "Kylie has been fighting non-stop with her mother Kris over the money generated from this," a source close told Radar Onlline.

The hair extension line, which retails at $249 per box, is reportedly "selling extremely well, and Kylie feels she should have complete access to the money because it is hers and she deserves it," the source added.