Australia ranks worst when it comes to childbearing, with a high of 8.8 percent of Australian births being unwanted or unwanted pregnancies.
The World Health Organization says the UK and US are the top two countries for unwanted childbearing.
However, many Australians have also had childless children.
This is according to data from the ABS’ National Family Health Survey, which was released on Wednesday.
It found almost a quarter of Australian adults aged between 15 and 44 had no children.
It also found that a significant proportion of people aged 45 to 54 had never had a child, with around a quarter (26.5 percent) of women of that age having never had one.
About 40 percent of those aged 55 and over were not expecting to have children, according to the ABS data.