Three experts. Three high-tech tools. We asked three female fertility experts about three technological-based tools commonly used by women who are trying to conceive. These are our experts:

• Dr. Sejal Dharia Patel, an associate with the Center for Reproductive Medicine in Celebration, Fla., and an associate professor at the University of Central Florida
• Dr. Eve Feinberg, reproductive endocrinologist and infertility specialist at the Fertility Centers of Illinois
• Kristin Kali, midwife at MAIA Midwifery and Preconception Services in Orinda, Calif.

The tools they're evaluating for us are ovulation predictor kits (OPKs), personal computers (PCs) and home pregnancy tests (HPTs).

From dealing with women who may be having issues with fertility, as Drs. Dharia Patel and Feinberg do, to working with gay couples who may have limited access to sperm, as Kali does, these experts understand the importance of a woman's awareness of her cycle. "Women are only fertile a few days of every month," Kali says. "It can be crucial to know when those days are."

What are they?
OPKs detect the surge in the production of luteinizing hormone (LH), which occurs roughly 36 hours before ovulation. Timing intercourse shortly after the LH surge can increase the odds of conception.

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