The Keeping Up With The Kardashians star and her long-time boyfriend Scott Disick are already parents to son Mason, four, and daughter Penelope, one.
According to Us Weekly, they are now expecting another addition to their family.
A source claims that Kourtney, 35, and Scott, 31, planned the pregnancy, saying: "Kourtney wants to have a handful of kids.... They don't know the gender yet. They just want the baby to be healthy.
So far, there's been no word from Kourtney or Scott.
While on holiday in the Dominican Republic last year, Scott was reportedly overheard saying he and Kourtney want a big family. "I want an entire soccer team!" he apparently said.
Well, if Kourtney is pregnant again, that means only another seven kids to go!
Last year, reality star Kourtney said being a mother was the most amazing thing she'd ever done. "It's definitely my favourite role in life," she told Parents. "It has changed me and made me realise there is nothing else I would rather do with my time.
"Being a mum is what life is about. I hope people realise what the priorities in life should be and know not everything has to be perfect."
As for what she wants to teach her children, she said: "I think that lesson I just described. Cherish your time and learn about what is important. I want them to know: Don't get caught up in things that don't really matter and don't get caught up in the things society puts so much pressure on.
If Kourtney is pregnant, this will be the fourth baby for the Kardashian sisters.
In addition to Mason and Penelope, there is also North West, eleven months, the daughter of Kourtney's sister Kim and new husband Kanye West.
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