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OTRC: Kim Kardashian, Kanye West expecting baby

Kanye West and Kim Kardashian attend Denise Rich's annual Angel Ball, which raised $3.7 million for cancer research, at Cipriani Wall Street in New York City on Oct. 22, 2012. (Theo Wargo / WireImage)

Kim Kardashian is pregnant with Kanye West's baby, her representative confirmed Sunday.

Kardashian and West first went public with their romance in April. Since then she has appeared in one of West's music videos and he admitted he rapped about her in a song.

At a concert Sunday night, the rapper announced told the crowd of more than 5,000 at the Ovation Hall at the Revel Resort in song form: "Now you having my baby."

UPDATE on December 31: Kim Kardashian has made her first public comments about her pregnancy, adding that she is looking forward to starting a family.

Several of Kardashian's family members tweeted about the pregnancy, including Kourtney Kardashian, Khloe Kardashian Odom, Kris Jenner and Kendall Jenner.

"Been wanting to shout from the rooftops with joy and now I can! Another angel to welcome to our family. Overwhelmed with excitement!" Kourtney Kardashian tweeted.

"Whos excited about the KIMYE babbyyy?! :D weeee," Kendall Jenner tweeted.

Kim Kardashian is in the process of divorcing NBA player Kris Humphries. The two married in August 2011.

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