Kim Kardashian, Kylie Jenner, Tyga React To Pregnant Blac Chyna Amid Kourtney Kardashian & Justin Bieber Baby Rumor

When Rob Kardashian and Blac Chyna announced they were engaged, the Keeping Up With The Kardashians (KUWTK) clan stayed silent. But, apparently they agreed to be more polite when news broke that Rob and his fiancée Chyna are pregnant, or at least some of the KUWTK family members remembered their manners, pointed out the Mirror.

Kylie Jenner and Kim Kardashian were among the first to respond when their brother Rob Kardashian announced that Blac Chyna is pregnant. Kylie Jenner and Kim Kardashian were among the first to respond when their brother Rob Kardashian announced that Blac Chyna is pregnant. [Photo by Kevin Winter/Getty Images]The first to react was a member of the extended KUWTK clan, Tyga, who symbolizes just how complicated this family tree has become. Tyga is in the role of boyfriend to Rob’s little sister Kylie Jenner, ex-fiancé to Blac Chyna, and father of Chyna’s first child.

“Congratulations,” wrote Tyga.

Kim Kardashian decided to content herself by politely indicating that she liked Rob’s picture announcing the pregnancy, and Kylie followed her big sister’s lead.

But did someone in the Kardashian and Jenner inner circle leak their secret? The lovebirds reportedly were intending to reveal their baby news on Mother’s Day, according to a source cited by the Mirror. But that didn’t happen.

“She would have preferred to have announced it on Mother’s Day herself, but her hand was forced. Allegedly the other half of her family leaked her story so she had to announce it.”

Amid these hints that problems continue in getting the Jenner and Kardashian clan to accept Blac, Kylie has stepped up to end her battle with Chyna. But credit supposedly goes not to Jenner but to Kim. Kardashian reportedly took on the role of diplomat to reach out to Chyna and Kylie and get them to become friends. Jenner and her new pal then shared a series of photos.

Kendall Jenner, Kim Kardashian and Kylie Jenner pose on the red carpet. Kendall Jenner, Kim Kardashian and Kylie Jenner pose on the red carpet. [Photo by Christopher Polk/Getty Images for MTV]“When we’ve been best friends the whole time,” wrote Kylie on one.

Kylie has sought to recover from the surprise announcement by her former enemy by turning to her friends, according to the Daily Mail.

Jenner joined her pals for dinner at a Beverly Hills hot spot, Il Cielo, on Friday. Known for her fondness for sporty yet edgy styles, Kylie opted to combine a mesh jacket with black leggings.

An insider told People that the Jenner and Kardashian clan have mixed emotions about the surprise announcement because they initially thought it was only a phase.

“When they were talking about the engagement, it’s like, ‘but it won’t last.’ But now that there’s a baby coming, everyone in the family knows that this relationship has permanence. Even if it doesn’t work out, they’re going to be co-parents of this child forever.”

While the Keeping Up With The Kardashians stars seek to keep up with the change from phase to forever, rumors have been swirling that Kourtney Kardashian is pregnant again, noted the Hollywood Gossip.

Kourtney has enjoyed an on-and-off romance with Justin Bieber, and it took only several new photos of Kardashian wearing swimsuits rather than bikinis for Bieber baby rumors to blossom again.

In addition, Kourtney has faced a backlash in response to her Instagram photos showing her slender figure, with some claiming she uses Photoshop to sculpt her body, according to OK magazine, citing an expert who alleged that Kardashian took advantage of photo-editing software.

“Her right thigh has been badly blurred. When you blow the image up, you can see the noise in the blue pool,” claimed celebrity photographer Alan Barry. “When you blur an area you kill the noise, and that is ridiculously obvious under her left butt cheek and her whole right thigh.”

But, despite all that speculation about a blossoming Bieber baby bump and the use of Photoshop for Instagram, Kourtney joined Khloé Kardashian in sporting a skin-tight bodysuit as they exited Cuba, and it was all about showing off her flat abs and whittled waistline, pointed out the Daily Mail.

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Whether Kourtney is actually hiding a pregnancy, there has even been speculation about whether Scott Disick, the father of her three children, or Bieber is the baby daddy, notes the International Business Times.

But, since Kourtney ended her relationship last summer with Scott, she’s been primarily linked to the 22-year-old pop star. As to whether those swimsuit photo interpretations that Kourtney might be pregnant, a representative for Kourtney has denied that she is expecting another baby.

[Photo by Frazer Harrison/Getty Images for Cosmopolitan]