The 20-year-old new mum showed of her taut tum as she celebrated her daughter's one-month birthday.
The Kylie Cosmetics mogul simply captioned, '1 monthhhhhhhhh.'
Later, Jenner shared a series of sweet pictures of her daughter.
Taking to Instagram, the star shared two images of herself cradling Stormi, wearing a head-to-toe tracksuit.
The Keeping Up With The Kardashians star also flashed a brand new ring on her wedding finger, sparking fans to believe the star's rapper beau and Stormi's father, Travis Scott, may have popped the question.