The X Factor judge – who is currently in Australia preparing for the birth of her first child with British boyfriend Kris Smith – claims she never saw a baby in her future until she became pregnant.
She said: "I just never thought it was something I would do. I had never been broody. No clock was ticking. And I would never have wanted to do it unless I was in the right relationship. He felt like the one.
"Kris loves me pregnant and that's a big, big help. You do have hormonal days and I think if anything was said that left me thinking, 'What did he mean by that?' it might have got to me. But he is loving every minute of it."
The 38-year-old singer also admits her older sister Kylie Minogue is not jealous of her having a baby and is simply glad to be alive following her recovery from breast cancer.
She said: "Someone asked me recently, 'Is your sister jealous?' I said, 'My sister is alive.' "
Discussing her place on the judging panel on British TV talent show The X Factor, Dannii admits she finds comparisons with Cheryl Cole tough, but is hardened to it.
She told You magazine "It's hard on both of us, because you want to have your own vibe and do you own thing.
"It reminded me of the years I've been through with Kylie, 'Who's better?' , 'Who's prettier?', Whose got nicer clothes?' "