The pair have been together since October 2014, shortly after Sam and her long term ex-boyfriend of three years Joey Essex split for good.
The star uploaded this super cute snap to Instagram on Tuesday, captioning it "Welcome to the world our beautiful baby boy 29.12.15".
Sam's sister Billie, mum of baby daughter Nelly also Instagrammed the same picture of the day old tot clutching his parents hands to publicly congratulate the pair, captioning "I am the proudest sister and auntie in the world @samanthafaiers1 and Paul ... I cannot describe my love for my beautiful nephew ... I love you all so much and I can't wait for all the wonderful time we are going to spend together with him and Nelly ...".
Just 5 days ago Sam also posted a photo of her and her beau looking excited for their new arrival, with the caption "Our little Christmas turkey is cooking. Merry Christmas So happy & blessed".
Mega congrats to the both of them!