Kim Kardashian and Kanye West on New Year's Eve 2013

Kim Kardashian hosted a bash at Las Vegas's 1 Oak nightclub last night. She was joined by boyfriend Kanye West and her mom Kris Jenner as well as pals Brittny Gastineau, John Legend, and Chrissy Teigen. Kim and Kanye had even more than just the New Year to celebrate since they announced over the weekend that they're expecting their first child together. It doesn't look like Kim's pregnancy has slowed her down since she's been on the go in recent days. She traveled to Atlantic City, where Kanye performed, and then headed back to LA yesterday before making her first public appearance in Sin City since the exciting news. Kim shared that she hasn't had any morning sickness, adding, "People always say it's easy and fun. It's definitely an adjustment, learning about your body and stuff like that. I've been feeling really good, so that's good."