Lamas, 24, is the daughter of actor Lorenzo Lamas. She is a co-star on "Leave It to the Lamas" and was the Season 12 winner of "The Bachelor" after which she was briefly engaged to star Matt Grant in 2008.
She went on to marry Nik Richie, co-founder of celebrity Web site TheDirty.com, just hours after meeting him in 2010.
"The Lamas-Richie family is happy, healthy and definitely pregnant," UsMagazine.com reported Shayne Lamas said in a Twitter message early Wednesday.
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