The blonde boutique owner announced via Twitter on Tuesday morning (7 January) that she and long-time boyfriend Greg Shepherd are expecting their first child together.
Billie wrote: "I am so happy to tell you all, that Greg and I are expecting our first baby! We are so excited!! Thank you for all of your kind messages."
Rumours of a pregnancy began to swirl last week, and intensified yesterday when the Essex star was snapped sporting what appeared to be a baby bump while out shopping with Greg.
She was also pictured at her sister Sam's Disney fancy dress party, covering her growing tummy in a green leotard.
After confirming her exciting news, Billie's TOWIE co-stars were quick to sent the couple their congratulations.
Ricky Rayment tweeted: "@BillieFaiers @Gregshepherd_ congratulations to u both!! Amazing news xxx"
Lauren Pope also sent Billie an emojicon of a baby's face, adding: "@BillieFaiers Congratulations!!!"
And Bobby Norris said: "Congrats @BillieFaiers and @Gregshepherd_ on your amazing news.. Can't wait to meet little bubba, you're both going to be amazing parents xx."
Billie and Greg have been dating for two years and live together in Brentwood, Essex.
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