A pregnant Khloe Kardashian packed her bags, hoofed it to Cleveland and partied like a (pregnant) rockstar with baby daddy Tristan Thompson on New Year's Eve!

The mom-to-be was ringing in a very special new year that will bring a world of change for her and her boyfriend when they welcome their first child in late March/early April as the reality star recently confirmed.

Khloe played photographer all night, constantly posting to Snapchat as she, Tristan and their friends partied at a local club. The group took a party bus home and Khlo continued to document, even posting a video of one of Tristan's pals busting a move on the bus. KK let her man enjoy a few drinks, while she abstained, of course. She gushed over Tristan, captioning one pic "He's sooooo handsome."

He is, Khlo -- we can't wait to see your little bundle of joy; it'll be a cutie!

Check out Khloe's hair and makeup for the big night out ...