Kim Kardashian is expecting her first child, her boyfriend Kanye West announced during an Atlantic City concert on Sunday, reported E! Online.
"Stop the music and make noise for my baby mama," West told the crowd.
This was followed by a Twitter post from Kardashian's sister Khloe: "Keeping secrets is hard with so many family members! Especially when you are so freaking excited! Love is everything!"
Their sister Kourtney also tweeted, "Been wanting to shout from the rooftops with joy. Now I can! Another angel to welcome to our family."
The couple started dating in April.
Kardashian's divorce with Kris Humphries has not yet been finalised.
A divorce hearing is set for February 15.