Fuel was added to the fire when she tweeted that she had a "huge secret".
"I have The Biggest Secret (unrelated to the album) and when u guys hear it, some of you are gonna explode
"into actual pieces
After hearing the response, she quickly shut down the rumours in true Halsey style.
"People think my last tweet is me hinting I’m pregnant," she tweeted. "Which means I’m either: a. gaining weight b. acting weirder than usual jokes on u, I’m doing BOTH! however STILL not pregnant!"
Guess we'll just have to wait and see what the big secret is!
Watch below... John Mayer Offers to ‘Break’ Friend Halsey’s Heart After She Complains of ‘Writer's Block’: