Your Family Pregnancy at any age comes with pros and cons; here's what to know, whether you're 20 or 40 and thinking about a baby BY STEPHANIE THURROTT Women have about three decades between the start of adulthood and menopause. That means you have a big window to start or grow your family. What time is best? That's for you to decide-and here are some factors to consider. S UMME R 2018 23