She welcomed a son with property developer boyfriend Paul Knightley yesterday (Tuesday, Decmber 29) - two days before turning 25.
Sam shared the news by posting an adorable picture on Instagram of her son’s tiny hand wrapped around the couple’s fingers.
She wrote: "Welcome to the world our beautiful baby boy 29.12.15."
Sam's former Towie co-stars were among the first well-wishers.
Sister Billie, herself a mother to 17-month-old Nelly, tweeted: "I am the proudest sister and auntie in the world @samanthafaiers1
"I can't wait for all the wonderful time we are going to spend together with him and Nelly."
Danielle Armstrong wrote: "Awe it's a Boy!!! Congratulations @SamanthaFaiers and Paul on the arrival of your baby boy lots of love xx."
Sam began dating Paul in October 2014, just after her split from co-star Joey Essex.
She confirmed her pregnancy back in August, but kept the sex of the child secret until birth
Sam described her pregnancy as “absolutely blissful” in October and said it has "changed me for the best".
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