The TOWIE star, 24, posed for a pretty snap on Monday evening (12 May), wearing a sizzling red dress that highlighted her blossoming bump.
Billie's fans were quick to compliment her, with one saying: "How stunning are?! Yummy mummy!"
Blonde boutique owner Billie will be the first TOWIE star to give birth when she welcomes her baby girl this summer.
She announced her pregnancy in January, saying that she and long-time partner Greg Shepherd are over the moon to be starting a family together.
And, in a double dose of good news, shortly after confirming the pregnancy, Greg dropped down on one knee and proposed while the couple were holidaying in the Maldives!
Billie has already confirmed that their baby will be a girl, although there's no word yet on whether she has any names picked out.
The Essex favourite was joined by her TOWIE co-stars, family and friends at the weekend to celebrate her baby shower. Sister Sam Faiers and pals including Lucy Mecklenburgh, Ferne McCann and Gemma Collins were all spotted arriving at the bash laden with gifts.
And it wasn't even her first celebration! By our count, the star has now held three parties to mark her impending arrival.
In February, she threw a party with fiancé Greg to mark both their engagement and baby news, revealing at the event it will be a baby girl. Then, the following month, viewers of TOWIE saw her celebrating at a baby shower with friends.
Hey, why not?! The more parties the better, we say!
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Celebrities who announced pregnancies in 2014 in pictures:
Copyright: WENN Lexie Appleby/Future Image/Bridow/Instagram