Stay Fertile Longer by Mary Kittel and Deborah Metzger, M.D., Ph.D. Many women today dream of having it all-a challenging career, a satisfying personal life, a loving mate, and a baby whenever they're ready. But there's no denying the fact that their biological clocks are ticking away. The odds of conceiving drop by 15 to 20 percent for a woman in her early 30s and plummet to less than 50 percent when she's in her 40s. The good news is that there...