Don't expect to hear Beyonce Knowles singing lullabies anytime soon.
"My ambition is to continue to learn about the world and to eventually have a family," she says.
But Knowles, 28, insists that she's in no rush to become a mother, saying that there are "no dates, no times -- it will happen when I am ready."
So what's stopping the "Single Ladies" singer from trading her world tour for diaper duty?
"Probably the biggest challenge in my life is time -- making sure I have time to be a wife, to be a singer, to be a songwriter, to be an actor and still have time for my clothing line and now for my perfume," Knowles confesses. "I am like any other woman who has a child, who has a husband, who has a job. I think it's the hardest thing about being a woman because we have so many responsibilities."Read More »from Beyonce: I’ll Have Kids With Jay-Z “When I Am Ready”