Congrats are in order for Blac Chyna and her husband-to-be Rob Kardashian. The couple is reportedly expecting their first child together.

TMZ reports that the model is “several months along” in her pregnancy and that they will make an official announcement on Mother’s Day.

This will be Blac Chyna’s second child. In 2012, she gave birth to King Cairo Stevenson, whose dad is Tyga. Rob has no children from a previous relationship.

The couple also teased the pregnancy with matching posts on Instagram.

https://www.instagram.com/p/BFE1I4sRvh-/

Last month, Tyga addressed his ex’s relationship with Rob in a series of tweets. “Everybody deserves 2 be happy. What some1 does for their happiness is not my concern, as long as it’s not interfering wit my happiness,” he wrote. “It makes me happy to see the mother of my son happy. My only concern in this situation is my son. I want him in happy environments.”

Tyga is currently dating Kylie Jenner, who is Rob’s half-sister. Although she’s been rumored to be feuding with Chyna in the past, the two recently posed for photos together.

https://www.instagram.com/p/BEgbd9ipWWS/

Their relationship is also part of the Kardashian family’s E! reality show, “Keeping Up with the Kardashians.” In an April clip previewing the new season, Rob addressed his family’s issues with his proposal.

“This is the first time I’ve ever proposed to someone in my life,” he said. “Don’t come at me with some bulls**t!”