The 40-year-old Austarlian singer split from Smith but says they will always work together to do the best for their little boy, reported Femalefirst online.
"I'm extremely private about my relationship, but I will tell you nothing has changed since Kris and I announced our separation. Although we are separated, Ethan remains our priority," Minogue said.
"Motherhood has been the most wonderful experience for me; his smile makes any bad day right. He's just adorable and gives me a reason to get up and keep going," she added.