The 39-year-old singer - who has divided her time between her homeland and the UK in the last few years while working on TV talent show `The X Factor`, which she left in 2011 - is not considering leaving her native country, where she now lives with boyfriend Kris Smith and their 13-month-old son Ethan because she can be near her parents.
She said: "I always thought I would come back. I was waiting for the thing that would anchor me here and having a family with a baby definitely does that, because everyone wants to be near their parents when they have a baby.
"It just worked out that Kris loves being here so there wasn`t any struggle with that."
Dannii quickly got back into shape following the birth of Ethan last year, but she admits it was not a conscious decision to do so.
She told the Australia edition of Grazia magazine: "I don`t understand how other mums go to the gym after having a baby because I`m exhausted just looking after him.
"I don`t know how my body did it. It just snapped back. I think it`s partly genetic. Mum said she was the same after each baby. Chasing after him, playing, running up and down stairs. And every time you pick up the baby and they drop their dummy, you think, `Weighted squat`!
"I would never do those in the gym but with your bubba, if you want to pick up his favourite toy, you just do it."