Kim Kardashian, Rapper�Tyga Respond To Rob And Blac Chyna's Pregnancy Bombshell

Now it's down to Kris, Khloe, Kendall and Kourt to pass on their congratulations...

They might not have responded to their engagement news, but it looks like Rob Kardashian’s family are willing to publicly congratulate him and fiancee Blac Chyna on their pregnancy news.