The 40-year-old TV talent judge, who split with former rugby player Kris Smith last month, said that she wants to spend time with her boy who is about to turn two, reported Sun online.
"I guess my world is about making time for being a mum and not missing out on special time with Ethan. Every week there are new things. He is changing every day.
"The music takes you on a different trip. You can't do everything. You choose a couple of important things and the rest is mum time," she said.
Mionogue said she spends her days doing normal things and does not need to have a nanny.
"I work one day a week on Australia's Got Talent. I've got a couple of extra things with this and some interviews and that's it. The rest is doing the creche run and looking after Ethan."