Pregnant Keeping Up With The Kardashians star Kylie Jenner may be expecting a baby boy, according to some observant fans' latest theories. The makeup mogul announced her pregnancy with an adorable Instagram video last month, revealing that she and boyfriend/rapper Travis Scott are expecting their second baby together. KUWTK fans anticipated a pregnancy announcement from the star after weeks of Kylie posting recycled photos to her Instagram feed, as she did during her first pregnancy with daughter Stormi Webster. Though she laid very low during her first pregnancy, Kylie may be dropping more hints about her pregnancy this time around.

Since her pregnancy announcement video, Kylie has been more open about showing her baby bump for Baby No. 2 on social media. The billionaire mama has been flexing her fashionable maternity style as well as continuing to run her cosmetics brand. Kylie recently announced the extension of her skincare line, Kylie Skin, for babies. Kylie announced that Kylie Baby will offer vegan and hypoallergenic products for families. While some fans pointed out the timing of her upcoming launch conveniently coincided with her pregnancy announcement, others think the brand announcement is a major clue about the gender of Kylie's next baby.

Related: KUWTK: Kendall Jenner Wasn’t 'Shocked’ About Kylie’s Pregnancy

Fan speculation about a baby boy ensued after Kylie posted the first promotional picture for Kylie Baby to her Instagram page. Kylie's followers seem to think the biggest giveaway hinting at a boy is the color scheme of her latest photo. Stormi is pictured sitting on Kylie's lap, and both mother and daughter are wearing baby blue. The packaging for Kylie's new product also incorporates hues of blue, unlike her typical Kylie Cosmetics products that are all pink. Always one for details, Kylie's toenails are even painted light blue in the photo, leading fans to believe she's using nail polish to hint at her baby's gender as she did with pink nails before Stormi was born. "She's obviously going to have a boy cause of the blue," one Instagram user wrote.

Fans believe Kylie hinted at a baby boy by using blue in other Instagram posts. Kylie previously showed off her "favorite girl" Stormi getting bigger in an adorable set of photos. Hawk-eyed fans noticed Kylie's use of the blue heart emoji in the post's caption, as well as the many blue details of Stormi's outfit. "KYLIE THAT'S A LOT OF BLUE," one user wrote. "Waiting for the 'blue for boy?' and 'she's ur fave girl coz ur having a boy?" another follower said.

The speculation around Kylie's second pregnancy will only continue as the star drops further hints to her 270 million followers. Fans are dying to know details like the sex of the baby, Kylie's due date and the name the A-list couple will give their son or daughter. Keeping Up With The Kardashians fans will have to stay tuned as Kylie drops hints before Baby No. 2 makes his or her arrival.

Next: KUWTK: Kylie Sends Travis Flowers Despite VMAs Speech Snub

Source: Kylie Jenner/Instagram