The 31-year-old took to Instagram to share the exciting news.
She uploaded a photo revealing her baby bump and captioned the pic: “Something's cooking ...”
The Sports Illustrated model and her husband Adi Ezra welcomed their first child, Liv seven months ago.
Refaeli married her 41-year-old businessman husband, Adi in Haifa, Israel, in September 2015.
She is also known for dating Leonardo DiCaprio for seven years from 2005 to 2011.
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