VIDEO : Blac Chyna and Rob Kardashian Know the Sex of Their Baby

There's some more exciting news that Blac Chyna and Rob Kardashian have yet to reveal. Shortly after finding out that the couple are expecting their first child together, The pregnant star is due in the fall, and that the pair already know the sex of the baby! But they're going to announce that little gem of information in their own special way.
A source tells E! News, that the engaged couple "are so happy about the news. They do know the sex of the baby and will reveal it soon enough. Seems like all The Kardashians are excited for the new addition.