The former Hollyoaks actress, 23, had alluded overnight to receiving treatment when she tweeted "#praying #stress #hospital #heartesslyevil."
That tweet has since been deleted but a Snapchat remains on her account showing an arm hooked up to an IV with the caption: "Feel awful but had an epiphany #notimeforawaister (sic)."
Reveal has contacted Steph's rep.
Stephanie shocked fans this week when she announced she was pregnant in a now-deleted Instagram post. She hasn't made reference to the pregnancy since, but did like a tweet this week that said: "Unplanned pregnancy does not mean unwanted."
While Steph hasn't publicly commented on the pregnancy claim, her ex-boyfriend Jeremy did take to Twitter to say he would take responsibility for his actions if the pregnancy is true.
"Just to be clear, if what is circulating is true, I'll always be responsible for my actions," said Jez, "and I explained to Steph I'll speak to her, and do everything for her, if she stops drinking and partying knowing she's "pregnant". I'm sick of tit for tat but I won't let anyone slander me.
"I haven't been ideal in the relationship whatsoever, I'm trying to move on peacefully, it's a shock to most, but a kid can't fix a broken relationship."
Stephanie and Jeremy, 25, met on Celebrity Big Brother in January and have had a tumultuous and very public romance ever since.
They split for a fourth time this month.
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