The former X Factor judge separated from Smith in April and is now a single mother to their 23-month-old child.
"Life has been full of [un]certainties and surprises but, even with the changes, I know I am incredibly lucky, and wake up each day feeling blessed with my beautiful baby boy there," she told Australia's InStyle.
"He knows if he says something with particular timing he can make you laugh, melt or whatever. I guess that's the Minogue performer inside him."
Minogue also lamented how the press interest in her has affected others, such as the families who go to the same daycare centre as Ethan.
"I understand media interest comes part and parcel with my work, but there are others who never signed up for this," she said. "[Paparazzi] have long-lens cameras pointed at their children at the entrance [of the centre]."
Minogue has also been challenged recently by the revelation of her secret fling with X Factor boss Simon Cowell.
Smith, meanwhile, has slammed Twitter users hassling him about the separation.