Hannah Quinlivan attended a charity event in a blue and white dress, and spotted with a visible baby bump.
Hannah's biological mother who accompanied her to the event may have accidentally let out the gender of her grandchild.
According to an article on Asian Pop News, Hannah's mother said, "My guess is a boy because her tummy is pointed!"
Jay Chou and Hannah are tight-lipped on the gender of their baby and it looks like Hannah's mother may have let out the couple's secret.
As Jay is the only child in the family, he has said before that he wants to have a son to carry his family line and hopes to have five children.
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