The blonde reality star treated fans to a new selfie on Wednesday (16 July) showing herself rocking a cute purple knee-length dress.
Billie added the caption: "Out and about with my little princess."
The starlet gave birth to her first child with fiancé Greg Shepherd on Wednesday, 9 July. So far the couple haven't revealed their tot's name publicly.
Billie's bedroom selfies are a familiar sight for fans – so we're sure everybody noticed that new addition to her room: a white crib!
She's clearly loving life as a mother, describing her newborn as "mummy's perfect little angel" yesterday.
Billie was supported by younger sister Sam Faiers in the delivery room, and later told her sibling: "I couldn't have done it without you."
TOWIE fans watched Billie's pregnancy develop on screen but so far the new mum and baby have yet to make an appearance.
On last night's episode, viewers saw Billie's close friend Ferne McCann telling Jessica Wright and Ricky Rayment that Billie and baby were doing great.
"They are doing so well, bless them. I can't wait for you to see her. She's amazing, just perfect. I'm so proud of Billie as well."
We can't wait to see them on screen either!
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Check out which stars congratulated Billie on her baby!