Billie and now-fiancé Greg Shepherd visited the Maldives last month after announcing their baby news and, while there, they got engaged.
The expectant mum has now tweeted a new snap of their trip and is shows her bare baby bump in all its glory!
Billie is wearing a blue bikini and coordinating kaftan in the photograph and is grabbing some shade underneath the branches of a big tree.
Clearly wanting to return to the Indian Ocean resort, she last night commented: "Arrrrrr take me back to the #maldives..."
Following their romantic 'baby-moon', Billie and Greg announced the sex of their first child during an episode of TOWIE.
While at their engagement/pregnancy party, the couple sliced into a cake and revealed a pink sponge, confirming that they are having a little girl.
Billie is due to give birth this summer.
Celebrities who have announced pregnancy news in 2014:
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