The former TOWIE star, who has been enjoying a two-week babymoon with fiancé Andy Carroll, squeezed in a last minute swim in beautiful turquoise waters before boarding a plane back to the UK.
In a new photo shared on Instagram, Billi can be seen gently cradling her baby bump in front of Dubai's famous Burj Al Arab hotel.
Wearing a purple and pink bikini, the yoga instructor looks healthy and happy in the snap taken on what could be her last holiday before she becomes a mummy.
Alongside the picture, Billi wrote: "Last Day of Sun #babymoon #dubai."
Just days before, Billi revealed she was 30-weeks pregnant with a cute picture from the very same spot.
Written in the sand by her feet were the words: "Baby Carroll #30weeks."
Alongside her post, she then told followers: "Woo Hoo #BabyCarroll #30Weeks #10MoreToGo @andytcarroll."
Set to welcome their first child together in July, Billi first announced her and Andy's baby joy on Christmas Day.
Their happy news came just two months after they revealed their engagement. Whisking Billi off to Rome for a surprise birthday treat, Andy popped the question over dinner in front of the Colosseum.
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