Does It Work? Fertility Trackers

Let's zero in on what can actually help you ID your prime baby-making days.

- By Stephanie Anderson Witmer

For couples trying to get pregnant, finding the optimal time for baby-making can be surprisingly tricky. Your fertile window starts 24 to 48 hours before ovulation and lasts 24 to 48 hours after, explains Anate Brauer, M.D., the IVF director at Shady Grove Fertility New York.

Plenty of products promise to pinpoint your peak fertile time frame, but which ones truly deliver? (Note: Don't rely on these as birth control, and keep in mind that they may not work well for women with irregular cycles, such as those with polycystic ovary syndrome.)

OVULATION PREDICTION KITS

WHAT THEY ARE: Sticks or wands that are held in urine for several seconds to pick up increased luteinizing hormone (LH), a hormone produced in the pituitary gland that tells the ovaries to release an egg