Rumors that the reality star was pregnant began this past week, when MediaTakeOut reported that she had been spotted leaving an OB-GYN’s office, followed by reports she was being treated for acute morning sickness.

Kim's sisters Khloe and Kendall also confirmed the good news via Twitter.

Kim also confirmed it her blog saying: "It’s true!! Kanye and I are expecting a baby," Kardashian posted Monday on her blog. "We feel so blessed and lucky and wish that in addition to both of our families, his mom and my dad could be here to celebrate this special time with us. Looking forward to great new beginnings in 2013 and to starting a family. Happy New Year!!! Xo."

Kim's boyfriend Kanye West also announced the big news in a big way -- right in the middle of his concert at Revel in Atlantic City on Dec. 30. The 35-year-old rapper told the crowd to "stop the music and make noise for my baby mama," referring to Kardashian, who was in the audience.

Ok, yes she is pregnant, am not surprised anyway, when they started dating I know this would surely happen, C'mon she is KIM...

source: http://gistmetro..com/2012/12/kim-kardashian-pregnant-expecting-baby.html