Calculate your ovulation date and fertile window based on your last menstrual period and cycle length. Plan conception with accurate ovulation tracking.
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How this calculator works
Subtracts 14 days from the cycle length and adds to LMP to find ovulation day. Fertile window is 5 days before and 1 day after ovulation.
Common questions about this calculator
Pregnancy calculators provide estimates based on standard formulas. Every pregnancy is unique. Always consult your OB-GYN or midwife for personalized care.
