The former X Factor judge was asked outright whether she is pregnant during a radio interview with Australian station KIIS FM.
Dannii, who now stars on X Factor Australia, was appearing via phone on the Kyle & Jackie O Show and seemed taken aback when questioned.
When asked by Kyle Sandilands if it was true that she is expecting, Dannii replied: "If I was, I wouldn't be able to say and, if I'm not, are you saying I'm fat?"
Both Kyle and fellow host Jackie Henderson both insisted that Dannii is NOT fat and attempted to backtrack.
Kyle quickly said: "No no no no, you look amazing!" But Dannii replied: "If you're asking me and I'm not, then you're saying I'm fat!"
Trying to explain Kyle's questioning, which came after a report that she is expecting, Jackie added: "I think it's because you're with the new man, not that you look pregnant."
Dannii, who is mum to three-year-old Ethan, then explained: "It's fair to say I have been stuffing down some hot cross buns recently!"
Celebrities who HAVE announced pregnancies in 2014:
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