The singer - who married artist Seth Kirby in 2010 - likes the idea of starting a family but worries she's too busy with her career and wouldn't want to be an absent parent, reported Femalefirst.
Asked if she wants children, she said: "I like the idea of it, but the reality is terrifying because I just have so much to do - I would want to be the kind of parent who has enough time."
The 41-year-old star and her husband have been working to renovate their home and are excited that the work is almost done.