Kim Kardashian Steps Out for New Year's Party After Pregnancy Announcement
updated 01/01/2013 AT 01:00 PM EST
•originally published 01/01/2013 AT 10:20 AM EST
"It's been so exciting," she told PEOPLE of the whirlwind of emotions she's felt since finding out she was pregnant. "We're very, very happy."
With just a hint of a baby bump showing under her form fitting black Julien Macdonald dress, the reality star rang in the new year in Las Vegas with the man she's spent 2012 with: Beau and baby daddy Kanye West.
"I wish I could share a drink with you all, but I can't for a little while," she told the crowd at Mirage's 1 OAK just before leading a countdown to 2013.
With the crowd cheering and confetti flying as the clock struck midnight, Kardashian stood on an elevated banquet adjacent to the deejay booth and passionately kissed West. And for the next 25 minutes, the deejay played nothing but West's songs – much to the delight of his pregnant girlfriend, who smiled and sang along.
As the night continued, the duo rarely left each other's side, with Kardashian dancing behind West while her party sipped Grey Goose cocktails. Kardashian stuck to water as the Grammy award-winning rapper occasionally rubbed her belly.
Her VIP table littered with party hats, streamers and black and gold balloons, Kardashian appeared happy throughout the night, kissing West and chatting with friends and family in attendance, including mom Kris Jenner, longtime friend Brittny Gastineau and Lance Bass.
Now that the new year has begun, Kardashian is working on being healthy for her unborn child.
"I've felt good. I've felt no morning sickness but it isn't the easiest," she said. "People always say pregnancy is so easy and fun. It's definitely an adjustment; It's learning about your body, but I've felt really good."
While the announcement of Kardashian's pregnancy came as a surprise to a lot of people, she doesn't want to be surprised when it comes the sex of the baby.
She said, "Of course I do want to know!"