January 18, 2026

Understanding Ovulation: Timing & Fertility Window Explained

Ovulation occurs 14 days before your next period, with a 6-day fertile window. Dr. Edelstein explains tracking via LH surges and temperature, and the 15% monthly conception chance for women in their 30s.


Key Takeaways

Using Ovulation Predictor Kits to Track Fertile Days

LH surges 24 hours before ovulation; testing daily with ovulation predictor kits (OPKs) helps identify the optimal time for conception, as sperm can survive up to 5 days in the female body.

Basal Body Temperature Method for Predicting Ovulation

A slight temperature rise (0.5–1°F) after ovulation can signal fertility. While less reliable than LH testing, tracking basal body temperature helps estimate future cycles.

Understanding Pregnancy Chances and When to Consult a Specialist

Women in their 30s have a 15% monthly conception chance. See a fertility specialist after 12 months of trying (under 35), 6 months (35–39), or 3 months (40+) if conception hasn’t occurred.


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