Rob Kardashian and Blac Chyna are expecting a girl. The couple confirmed the happy news on the premiere episode of their E! reality series, Rob & Chyna, on Sunday, September 11.

“I’m pretty nervous. I’m excited,” Rob says before the big reveal. “I really want a boy.”

Then the doctor announces, “You are having…a girl!”

“Rob, it’s a girl!” Chyna exclaims excitedly. “Oh, that’s crazy,” Rob adds.

“You have a boy at home, right?” the doctor asks them, referring to Chyna and Tyga’s son King Cairo.

“Yeah, but I don’t,” Rob says. “That’s OK, this is your first,” the doctor reassures Rob.

“It’s an emotional moment. Me wanting to have a boy, it definitely stems from my dad but I’m sure I’ll have the same relationship that I had with my father with my daughter,” Rob says in a confessional. “I’m just happy that the baby’s healthy and I’m gonna be super happy with a girl.”

“That’s a nice, normal heartbeat,” the doctor tells Rob and Chyna. “It’s regular and there’s no problems with the beat of the baby’s heart.”

The doctor continues the ultrasound and adds of their baby girl, “Look it, she’s putting her little booty right up at ya.”

“She better not be doing that!” Rob jokes. LOL!

Now the big question is: what will the newest Kardashian girl be named?!

During a Facebook Live chat last month, one fan asked Rob and Chyna if they’ll “carry on the tradition of the K names” in his family.

“But probably not,” Rob revealed. Chyna then echoed Rob, “Probably not.”