The 29-year-old reality star and 28-year-old model spent New Year's Day with their infant daughter, Dream Renee, following their highly publicized split in December.
Kardashian shared a photo on Instagram of himself holding Dream, writing, "2017." Blac Chyna also posted clips with her daughter and the reality star on Snapchat.
Kardashian and Blac Chyna celebrated New Year's Eve as a couple the night previous. The pair stepped out together for a sushi dinner and shared posts of themselves wishing fans a happy new year.
"Happy New Years woohoo! Hope y'all have a great New Years and be safe! Ciaoooooo," the reality star wrote.
Kardashian had announced Dec. 17 that Blac Chyna had left him and taken Dream. The couple appeared to reconcile before Kardashian was hospitalized on Dec. 28, reportedly for issues related to his diabetes.
"He's been so stressed out so [he's] not taking care of himself or eating right," a source told Us Weekly. "Stress affects his diabetes."
Kardashian was diagnosed with diabetes after being hospitalized in December 2015. He and Blac Chyna got engaged in April 2016 after three months of dating and welcomed Dream in November.