The 37-year-old is expecting her third child with footballer husband Jamie Vardy.
The couple share Sofia, four, and Finlay, two, and are preparing to welcome their third together.
Rebekah was already mum to Megan, 13, and Taylor, nine, while Jamie has another daughter named Ella, who is thought to have been born in 2010.
Sharing a picture of a 4D scan of her baby's face, she wrote on Instagram: "Hello baby.....We can’t wait to meet you"
Her old I'm A Celeb campmate Dennis Wise commented: "The wisey can't wait either"
While a fan said: "Adorable!"
And one wrote: "So amazing these scans cant get my head round how you can see there faces"
Rebekah has been locked in a battle with Wayne Rooney's wife Coleen lately.
Coleen was nicknamed Wagatha Christie in the wake of the scandal after unveiling her detective work.
She said she had planted false stories on her private Instagram account and revealed in an epic statement that she'd blocked every account but Rebekah's from viewing her Stories to test whether or not the information would leak.
And when they did, she told the world what had happened in a bombshell statement that went viral.
Rebekah has vehemently denied leaking stories about Coleen and said in her own statement that she was "disgusted" that she even had to deny it, especially when she's heavily pregnant.
She was so upset that she cut her Dubai holiday short and flew back home.
Becky claimed she has hired a forensic IT expert to prove her innocence and is considering legal action.
But representatives for Coleen say she has irrefutable evidence that the leaks came from Rebekah's account.
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