Many women are too busy climbing the career ladder to think of children right now, while others are still waiting for Mr. Right. Research in fertility and methods of preserving eggs have encouraged more and more women to put off starting a family, but how sure are you that the eggs you freeze today will be good enough when you want a baby? US fertility experts warn that the chances of a successful birth from frozen eggs are as low as two per cent per egg, so make sure you freeze many as you may need many attempts before one holds. Other experts say that freezing eggs is a realistic option for women in their early thirties who want to postpone motherhood to their forties. At 42, for example, a woman has a much higher chance of getting pregnant with her own frozen eggs than with her already time-expired ones. While you make motherhood choices, just know that there are risks involved in leaving it too late.