The Keeping Up With The Kardashians star, 35, was out and about in Calabasas, California, on a sunny Saturday afternoon (6 September) and seemed to be taking her pregnancy in her stride.
The yummy mummy was spotted strolling with her son Mason, four, and daughter Penelope, two - who both appeared to be in rather unusual attire.
While Mason looked cute in a Teenage Mutant Ninja Turtles hoodie, both he and his younger sister sported shiny black shorts which could also have been borrowed from a superheroes wardrobe!
Kourtney, meanwhile, looked the picture of health in a figure-hugging dark grey dress which showed off her beautiful baby bump.
Her loose denim shirt and gladiator style sandals completed the boho mum look perfectly!
Viewers of reality show KUWTK recently saw the moment Kourtney broke the news that she was expecting their third child to long-time boyfriend Scott Disick - and she doesn't quite get the reaction she was hoping for!
Having brushed that off like a true Kardashian, Kourtney recently took to Instagram to post a cute throwback picture of herself wearing a golden crown fit for royalty.
Teamed with a recent photo of herself, also in a crown, Kourtney captioned the snaps: "Once a queen, always a queen."
We couldn't agree more, Kourtney!
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Check out the other celebrity couples who have announced pregnancies in 2014:
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