The photos, published by The Sun, show Stephanie sitting in a beer garden holding a pint which she takes a swig from. There is also a coke glass in front of her.
Stephanie, 23, liked one fan's tweet that read: "If you look at the pictures, you can clearly see that her friend has popped to the loo so she is having a crafty swag.
"When he comes back, he has the pint back, and she has the coke. It's all been set up… to make a story. Poor Stephanie."
She later replied to the fan, tweeting: "Anything for a story though. Following me out and about.. So sad! Wish they would leave me alone! annoying!"
Stephanie added in a second tweet: "Sip of my mates drink clearly not a boozy night out. Sad. Laughing. Over my head (sic)."
Ex-Hollyoaks actress Stephanie had earlier tweeted to say she was on the "orange juice" while out at the beer garden enjoying the sunshine.
Stephanie announced in May that she is pregnant with her first child. Her baby news came following a fourth split from former Celebrity Big Brother co-star Jeremy McConnell, who has said the child isn't his.
Sources close to Stephanie have told Reveal: "These accusations are causing great stress to Stephanie. Treating a pregnant woman like this is totally unfair, given all the changes she is going through. For Jeremy to say he isn't the father is going to backfire on him totally. He should reign in what he is saying because he will have serious egg on his face when the baby is born."
Speaking to OK magazine in May, Steph said: "My pregnancy was a shock but I can't wait to be a mum. I hope that Jeremy will want to be a part of this baby's life, but if he decides not to then I am prepared to raise our baby on my own."
Earlier this month, the star hit back on Twitter after one user accused her of faking the pregnancy. "You're not even pregnant," said the user. "We're all just waiting for the inevitable 'miscarriage horror' story. You're a mess."
Stephanie responded: "Absolutely disgusting! This is why I'm not sharing any photo [sic] as there's so many vile people! I've been under enough stress."
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