Katie is expecting her fifth child in the next few weeks but told listeners this morning (8 July) that she suddenly felt "a bit peculiar" live on air.
Speaking to her FUBAR Radio co-host Mark Dolan, Katie suddenly seemed distracted and explained that she'd felt a bit funny in her tummy.
"I feel a bit peculiar," Katie suddenly said. "I don't know if my waters are going to go but, if it's coming, it's coming."
Worried Mark then asked if she's had a "funny turn", as being in London she was quite far from her home in West Sussex, but Katie replied: No, it's not a funny turn."
She added: "It's weird. How can I describe it. It's like someone is washing up in your stomach, all moving about. It's really weird!"
Could this be it?!
Katie found out she was unexpectedly six months pregnant back in May and, just days later, it was revealed her husband Kieran Hayler had been cheating on her with her best friend, Jane Pountney. Both have since admitted the affair and apologised.
Kieran, meanwhile, is "receiving help" and Katie is standing by him for the time being.
Meanwhile, while on air, Katie revealed a name that she might call her baby daughter and also spoke about her sex life.
"I'm on my fifth pregnancy now and [your libido] varies through different pregnancies," she said. "Like when I was pregnant with Harvey, [my libido] hasn't disappeared. I'm pregnant not ill."
Celebrities who have announced pregnancies in 2014:
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