Kim Kardashian Pregnant 2012, 'Not Easy' And 'Painful,' She Says

Reality star Kardashian opened up about her pregnancy the day after her boyfriend, rapper Kanye West, announced the news.

Kardashian, 32, hosted a New Year's Eve bash at 1OAK Nightclub at The Mirage hotel in Las Vegas and said being pregnant  is "not as easy," and admitted it has been "painful."

"When people say that pregnancy is fun and they love it, I would have to disagree," Kardashian told ET.

"Even my sister has made it look easy, and it's not as easy as people think," she said, but not before putting a positive spin on it saying that she heard "it's all worth it, so I'm looking forward to that."

The "Kourtney and Kim Take Miami" star, who is believed to be twelve weeks along in her pregnancy, said she feels pretty lucky to not have to experience the morning sickness, which is common in most pregnancies.

"I have felt good. I haven't had any morning sickness, but it still isn't the easiest," she said. "I've been feeling really good so that's good."

She also noted that she hopes to find out the sex of the baby as soon as possible.

"Of course I do want to know. I can't find out yet, but I do want to know," she admitted.

Kardashian, 32, was stunning in a black knee-length dress with lace detailing at the New Year's Eve bash. She attended the party with West, 35, her boyfriend of eight months.  

West announced Kardashian's pregnancy at his concert on Dec. 30 at Revel Resort's Ovation Hall in Atlantic City. He asked the audience to congratulate his "baby mom," saying the pregnancy was the "most amazing thing."

Kardashian's brother Rob also hosted a New Year's Eve event and weighed in on his sister's good news. Rob, 25, said that although he is "proud" of his sister, he'd rather wait until he is married to have any children of his own.

"I'm so proud of my sisters, but I'll be married before I have a baby," Rob told People at the Esquire Magazine & Ciroc Ciroc New Year's Eve Countdown party in Miami, Fla., on Dec. 31. "Kim and Kanye are over the moon happy. I'm so excited to be an uncle again!"