Miley Cyrus has dismissed rumours that she is pregnant after sparking speculation with an Instagram post where she is seen wearing a loose fitting top, with her hand placed on her stomach.

Cyrus celebrates her birthday on Thanksgiving and has been sharing photographs with fans of the presents her boyfriend Liam Hemsworth has been showering her with on the double celebration.

Standing in front of silver metallic balloons spelling out her name, Cyrus posed for a photograph wearing a loose fitting grey tshirt with her hand placed on her stomach. Cyrus captioned the Instagram snap, "So close to b-day time! Stoked for a day full of Tofurkey & loved ones! Ain't it ironic? #VeganTurkeyBaby"

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The post sent fans into a frenzy speculating on whether or not the Malibu hitmaker was pregnant with her first child, but Cyrus didn't wait long to deny the claims.

Taking to her Instagram story, Cyrus posted the picture again, labelling the 'bump' as the result of eating so much tofu turkey.

"Not pregnant, just eating a s*** ton of Tofurky... RUDE!!!" she said.