Ovulation Calculator
Estimate your ovulation date, fertile window, best days to try for pregnancy, and next expected period.
What This Calculator Means
This Ovulation Calculator estimates when you may ovulate based on the first day of your last period, your average cycle length, and your luteal phase length.
Your fertile window usually includes the 5 days before ovulation and the ovulation day itself. These are the days when pregnancy is more likely to happen.
Ovulation can change due to stress, illness, breastfeeding, PCOS, irregular periods, medication, travel, or lifestyle changes.
Medical Disclaimer: This tool is for educational purposes only and should not replace medical advice. If you have irregular cycles, fertility concerns, or pregnancy-related questions, speak with a qualified healthcare professional.