Rob Kardashian and Blac Chyna Are Expecting Twins!

Rob Kardashian, 29, and fiancée Blac Chyna aren’t just expecting one baby — they’re going to be welcoming twins!

A source tells Life & Style that the couple is making room for two bundles of joy, who are due this fall.

https://www.instagram.com/p/BHMKaQLhWQc/

“[Chyna] knew almost immediately that this pregnancy was different because of how fast her body was expanding and changing,” the insider reveals of the 28-year-old, who is already mom to three-year-old son King Cairo.

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So how did Rob’s famous family react to this latest development? “[Kris Jenner] has expressed her joy over the twins, telling Rob, ‘the more the merrier.’”

For more on the pregnancy, pick up the latest issue of Life & Style, on newsstands now!

And for a closer look at Chyna and Rob’s whirlwind romance, scroll through the gallery below!

Breakup rumors plagued the couple after Rob deleted all of his Instagram photos with Chyna on March 6, 2016.

The following day, Rob took to Instagram and wrote, "Chy and I are not broken up we just feel like it would be a lot healthier for our relationship if we kept a lot more to ourselves. It's impossible to have a positive relationship with so much negativity from the media and outsiders and we would appreciate it if everyone respects that."

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On Jan. 25, 2016, Blac Chyna and Rob went public with their relationship.

Shortly after Blac Chyna's photo was posted, Khloé tweeted, "You can do anything. But never go against the family."

On Jan. 27, 2016 Rob moved in with Blac Chyna.

On Jan. 30, 2016 Blac Chyna was arrested in Texas for public intoxication, and Rob reportedly drove from LA to pick her up.

On Feb. 24, 2016, Rob announced that he was choosing Blac Chyna over his family.

Breakup rumors plagued the couple after Rob deleted all of his Instagram photos with Chyna on March 6, 2016.

The couple celebrated Rob's birthday together by going to Legoland with Chyna's three-year-old son, King Cairo.

On April 5, 2016, Blac Chyna posted this photo with the caption, "YES !…!…!," revealing the duo is engaged.

On May 6, 2016, Blac Chyna revealed she's pregnant.

On July 13, 2016, Rob and Chyna shared the first pic from their reality series.

The duo broke up for a final time in early 2017.

In July 2017, Rob leaked nude photos of Chyna.