Geordie Shore star Kyle played the prank on Holly on Monday evening (14 November) before she snatched her phone back and deleted it.
However, this was not before eagle-eyed fans had caught a glimpse!
As Holly began receiving messages of congratulations, she quickly clarified: "You're a tw*t @KyleCGShore!" Holly added: "Am not pregnant guys, that was Kyle."
Shame. For a second there, we thought we were about for have our first Geordie Shore baby!
The 'pregnant' post aside, Holly has been keeping fans on their toes lately with a series of cryptic tweets about her future on Geordie Shore.
Having joined the MTV show ahead of its launch in 2011, Holly has been hinting that she is set to follow in the footsteps of Charlotte Crosby and Vicky Pattison, who have both quit.
As whispers emerged of three new Geordie girls joining the lineup, Holly tweeted: "RIP to the Gshore we once knew. So glad I was there from day one. Never be the same @Charlottegshore."
And although she has not officially confirmed whether she is quitting or not, Holly did retweet a fan who said: "Actually gutted @HollyGShore has left! Probably the most relatable reality star ever!"
Watch this space.
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