The TOWIE starlet uploaded a selfie to Instagram on Monday night (14 April) showing herself modelling the Giulianis Sweater, £49, available from her own store.
And clearly it was a MASSIVE hit with fans, as just fifteen hours later, it's completely sold out!
Maybe Billie should just model everything from Minnies Boutique?!
Billie's style has been pretty a-mazing since she announced her pregnancy back in January, whether she's dressed down in a knitted vest and jeans, glammed up in a little dress or just on the beach in a bikini.
Perhaps that's why one fan told her on Instagram: "I think you should have a pregnancy fashion line. You always look beautiful!"
Billie has been holidaying in sunny Dubai with her fiancé Greg Shepherd, her sister Sam Faiers and their mum in recent days, enjoying some down time after the eleventh series of TOWIE wrapped earlier this month.
And, of course, a holiday before the baby arrives!
As one fan told her: "Enjoy your last night on holiday, get ready to come home and relax until you will get no sleep every night but have the bestest, cutest thing in your arms!"
Billie has already revealed she's expecting a baby girl and, as her latest business venture is the Jamswear childrenswear boutique, we fully expect Baby Faiers to look as immaculate as her glam mum!
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Copyright: WENN Lexie Appleby/Future Image/Bridow/Instagram