The 25-year-old actress' publicist stopped an interview with Steve Jones after he pressed her on the issue, reported Contactmusic.
Jones managed to bring up that Fox and her husband Brian Austin Green might be expecting their first child while asking the actress about her favourite gadget.
Fox was stunned after he asked her: "Do you know the ultimate gadget that every man wants? A baby."
"A baby? Oh, I know where you are going with this," Fox replied with a confused look.
The presenter later made an apology for his questioning.
"I would like to formerly apologise to Ms Fox for attacking her with the word baby. Thankfully, there was a publicist there to stop me," Jones said.