hloé Kardashian is already looking forward to hitting the gym again. Although the 33-year-old, who’s expecting her first child — a daughter — with boyfriend Tristan Thompson , kept up her impressive workouts throughout most of her pregnancy, as she’s gotten closer and closer to her due date, the reality star has had to limit her exercise to activities like walking on a treadmill . “Random thoughts but I can NOT WAIT to f— up the gym when it’s time lol,” Kardashian announced on Friday night. “ BEAST MODE is dying to return !!” Although the 33-year-old admitted that returning to the gym post-pregnancy “won’t be easy,” she revealed she was “excited for the challenge.” Want all the latest pregnancy and birth announcements, plus celebrity mom blogs? Click here to get those and more in the PEOPLE Babies newsletter Khloé Kardashian RELATED: Pregnant Khloé Kardashian Does Goat Yoga with Kevin Hart: 'Naaaaamaste' The Keeping Up With the Kardas...