For the uninitiated, Chyna's pregnancy – which she revealed just two weeks after posing alongside her proclaimed "lil sis" Kylie Jenner on Snapchat – might seem like no big deal.
If that was the case and you didn't bat an eye at the news that the Kardashians allegedly were the ones to leak the news, then you probably need a refresher on the Chyna/Kardashian/Jenner drama, which imploded back in January when Rob, 29, and Chyna, 27, went public with their relationship.
Let's start at the beginning, though, and get to the bottom of why exactly everyone is talking about a woman named Blac Chyna – whose real name, in case you wondering, is Angela White. Here's a recap of her long and tumultuous history with the Kardashian-Jenner women, which begins with a rapper named Tyga, 26.
It all started when Chyna starred in Tyga's "Rack City" music video in 2011. They began dating in November of that year, posed for the cover of Urban Ink magazine a few months later, and welcomed their son, King Cairo Stevenson, in October 2012. They were engaged shortly afterwards, but broke it off by August 2014.
Imeh Akpanudosen / Getty
DONT BELIEVE THE RUMORS, BEEN FRIENDS WITH THE FAMILY FOREVER. WERE ALL JUST FRIENDS.— T-Raww (@Tyga) September 8, 2014
Indeed, he was good friends with the Kardashian-Jenner crew and even attended Kim Kardashian West's May 2014 wedding to Kanye West with Chyna, who also happened to be close pals with Kim herself.
Clint Brewer / Splash News Online
At this point, Chyna's BFF Amber Rose – who, by the way, also happens to be Kanye's ex – decided to get involved, going on Power 105.1's The Breakfast Club in February 2015 and slamming Tyga and Kylie for their (at the time) rumored relationship.
"Kylie's a baby," Rose said. "She needs to go to bed at 7 o'clock and relax. It's ridiculous. Tyga should be ashamed of himself. That's how I feel, for sure. He has a beautiful woman and a baby that he left for a 16-year-old who just turned 17."
Then Kylie's sister Khloé Kardashian got involved, sparking what would become a massive Twitter feud.
" 'I was a stripper since I was 15 years old,' Amber Rose told Foxx," Khloé tweeted, quoting an old Rose interview in which she divulged her past job. "Please don't worry about my sister who has a career and her s--- together at ONLY 17. People who live in glass houses shouldn't throw stones," she continued, adding: "Please stop talking about us in interviews mama. None of us talk about you."
“I was a stripper since I was 15 years old,” Amber Rose told Foxx. Please don't worry about my sister who has a career & her shit (1)— Khloé (@khloekardashian) February 16, 2015
@khloekardashian: together at ONLY 17 people who live in glass houses shouldn't throw stones. (2)— Khloé (@khloekardashian) February 16, 2015
Please stop talking about us in interviews mama. None of us talk about you. (3)— Khloé (@khloekardashian) February 16, 2015
"[There are] 3 sides to EVERY story. His, hers and the truth. I'm not passing judgment but I wish others would do the same until they have FACTS," she concluded.
3 sides to EVERY story. His, hers and the truth. I'm not passing judgment but I wish others would do the same until they have FACTS.— Khloé (@khloekardashian) February 16, 2015
In response to Khloé's barrage of tweets, Rose simply tweeted back with the hashtag "#DontPanic," which is the title of a song by Khloé's boyfriend at the time, French Montana, for which Khloé starred in the music video.
(Rose eventually went on to apologize for the spat, but by the way, that wasn't the first time she feuded with the famous family – in 2012, she alleged to Star magazine: "Kim is one of the main reasons me and Kanye are not together. She's a homewrecker! They were both cheating on me and Reggie [Bush] with each other.")
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Finally, a month later (we're in March 2015 now) Tyga seemed to confirm he was dating Kylie by posting an Instagram of her with the caption: "Certain things catch your eye, but only few capture the heart." (Oh, and he also got a "Kylie" tattoo at some point.)
In the months since – and particularly after Kylie turned 18 in August – the duo became much more open about their relationship, regularly stepping out together, making out on Snapchat and even starring in two of Tyga's music videos together.
Meanwhile, there was no love lost between Tyga and Chyna: the rapper lashed out his ex on Instagram in September for allegedly spreading rumors that he couldn't afford the Ferrari he bought Kylie for her 18th birthday.
That just about catches us up to this January: Though Tyga and Kylie went through a rough patch in late 2015 (spending lots of time apart after the rapper was hit with cheating allegations in January), the two are very much still going strong.
Which finally brings us to the Rob Kardashian connection, and why Kylie and the rest of her famous family were less than pleased when they found out Rob and Chyna were dating. ("Kylie is livid," a source told PEOPLE when news of the relationship broke. "She feels super betrayed and can't understand why someone in her own family would stab her in the back like that.")
Of course, then Rob and Chyna went ahead and got engaged, and not a single Kardashian-Jenner publicly acknowledged the news for nearly a month – up until two weeks ago, when Kylie and Chyna decided to throw everyone into a legitimate frenzy by oh-so-casually hanging out on Snapchat.
"When we've been best friends the whole time..." Kylie captioned the mirror selfie.
Oh, and they also face swapped, because, you know, it's Snapchat. Welcome to the family, Chyna.