The gender-inclusive bash was thrown by Chyna's best friend Sylvia Karapetian.
The lavish bash took place on a private estate in a gated community in L.A.'s Woodland Hills neighbourhood on Sunday, according to US Weekly.
In attendance were friends and family of the couple, including Scott Disick and Chyna’s three-year-old son King Cairo. Rob’s siblings Kim and Kourtney and his mother Kris could not attend as they were in Paris for Fashion Week .
A source told US Weekly: "Gifts were massive. Her friends were definitely spoiling her with the gifts." The coupe are said to have put a $370 stroller, baby bibs and a diaper genie on their baby registry.
"The cloud theme was carried over in details from the invites down to the flowers, and to the cake, which was suspended from above on a cloud of balloons," the source added. "The flowers were made to look like clouds as a base for it to sit on.”
The shower comes a week after Rob tweeted out his sister Kylie’s phone number after a mix-up over a previously planned bash. Rob had mistakenly thought that his family were planning a baby shower for him and had neglected to invite his fiancée.
On Snapchat Kim Kardashian had filmed herself FaceTiming Chyna during the bash from her Paris apartment. Hours later Kim was robbed at gunpoint inside the apartment, by masked men who made off with millions of dollars worth of jewellery.