The TOWIE star, who is engaged toher long-term boyfriend Greg Shepherd, shared the exciting news on Twitter. "We are so excited to announce the birth of our beautiful baby girl... We are so happy and the proudest mummy and daddy in the world," she posted.
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Billie Faiers is now mum to a baby girl
Billie's younger sister Sam, who used to star in the Essex-based reality TV show, couldn't contain her excitement as she revealed the news online ahead of Billie.
Congratulating her sibling, Sam wrote to her 1.28 million followers, "Am the proudest auntie in the whole world my baby niece is perfect. Congratulations @BillieFaiers & @Gregshepherd_."
We are so excited to announce the birth of our beautiful baby girl ... We are so happy and the proudest mummy and daddy in the world 💗💗💗
The baby is Billie's first child with her fiancé Greg Shepherd
Essex beauty Billie had been keeping her fans updated in the lead-up to the big day, posting photos of the baby's pink nursery and her well-prepared hospital bag.
"I think she's more excited [than nervous]," Sam previously told HELLO! Online of her sister's pregnancy and due date. "The nursery's done and her hospital bag is ready, so it's all coming together.
"I've already bought the baby loads of little presents, I'm definitely going to be an aunt who spoils her! I bought her a Chloe dress and some little Dior silk pram shoes, which I love. Billie's bought loads as well, and she had a baby shower and got loads of presents then."