Taking to Instagram, the former reality star treated fans to a brand new photo of her little man. Isn't he just gorgeous?!
In Billi's photo, Arlo can be seen looking oh-so-cute while posing in his personalised bib and white baby grow.
Besotted with her baby boy, Billi gushed alongside her photo: "I Just Love Him #2weeksold #perfection #LittleAC."
She and fiancé Andy Carroll welcomed Arlo, their first child together, earlier this month on 15 June.
Announcing his safe arrival, the pair both took to Twitter shortly after Billi had given birth. While she welcomed her son into the world, Andy tweeted: "Welcome to the world little AC!! 9 months of cooking and what a wonderful job you have done @billimucklow."
Since then, the couple have been sharing plenty of photos of their new addition with fans.
Just last week, Billi shared a seriously cute family shot of herself and Andy with their bubba. Captioning her picture, she said: "My Little Family #MyBoys #MyEverything @andytcarroll."
Billi first announced she was expecting back on Christmas Day last year. Her baby news came just two months after she and Andy revealed they are set to wed.
Andy had asked Billi to marry him during a romantic trip to Rome, popping the question over dinner in front of the Colosseum.
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