At the end of a trailer for the new series of Keeping Up With The Kardashians, the reality star says to her sister Khloe, "We're having a baby".
There have been reports in the US that Kim's younger sister Khloe and half-sister Kylie Jenner are also pregnant.
The trailer didn't address their reported pregnancies.
In a clip for season 14 of the show, Kim is speaking to Khloe in a video call.
"What happens every time I say, 'Guess what?'" Kim asks.
"The person's pregnant?" Khloe asks before Kim announces, "We're having a baby".