Kourt's Big Bump Debut!

Oh my gourd – that’s not a pumpkin the mum-of-three’s hiding under her dress...

Early last month, NW exclusively revealed that Kourtney Kardashian is keeping mum on the fact she’s expecting her fourth child. Why? She doesn’t want to steal the thunder from her also-preggo sisters Khloe Kardashian and Kylie Jenner.

But soz Kourt – the bump you were packing at the pumpkin patch in LA on October 29 has given the game away!

“She’s 100 percent expecting,” an onlooker tells NW of the reality star, 38, who’s head-over-heels with her toyboy-of-11-months Younes Bendjima, 24. “From every angle you could see her bump... From the front, from the side!”

Still, while Kourt might have been more than happy to flaunt her burgeoning belly in her figure-hugging orange minidress, don’t expect her to come out and confirm the exciting news just yet.