It's unconfirmed if the Instagram account, which was only created three weeks ago, actually belongs to Briana, but naturally that hasn't stopped excitement from building amongst the fandom, with fans rushing to offer their congratulations.
A photo posted on 26 December shows a blonde girl appearing to gaze down lovingly at her blossoming bump, which is covered in a floaty black dress. Although with her hair covering her face, it's hard to tell who's actually in the snap. The image is captioned: "beyond grateful for such a beautiful day."
You can view the image here and decide for yourself if it's Briana or not!
After the news of the baby joy first broke in July last year, both Louis and Briana have kept details private. Throughout the pregnancy, the mum-to-be has stayed out of the limelight and has rarely been pictured.
At the time, a source told People that Briana wants to live a life outside the spotlight.
A source said: "Briana is a really lovely girl; she's absolutely not interested in Louis' fame. She's very private and most of the time they spend together is out of the public eye, just hanging out with their friends."
The insider said Briana wasn't even a One Direction fan when she met Louis and only recently went to her first concert. At that time at least, she wasn't not on Twitter or Instagram.
Louis and Briana are thought to have met via mutual friends in May, shortly after Louis' split from long-time girlfriend Eleanor Calder.
Louis has also remained tight lipped on the topic, other than confirming the news back in August when he told Good Morning America: "Obviously it's a very exciting time, I'm buzzing."
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