Kim Kardashian Reveals Why Pregnant Kourtney Missed Her 43rd Birthday Party

Kim Kardashian Reveals That Pregnant Kourtney Kardashian Is on Bed Rest Amid Complications

Inside Kim Kardashian's High-Profile 43rd Birthday Party: Ivanka Trump, Lauren Sanchez and More

Kim Kardashian reveals her pregnant sister Kourtney wasn't at her birthday bash because she was on 'bed rest'