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排卵日計算機
排卵期と受胎に最適な日を追跡
最終確認： 精度確認済み
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Estimated Ovulation Date
Wed, Mar 4
Today
この電卓は情報提供のみを目的とした概算を提供します。医学的アドバイスではありません。健康に関する決定を行う前に、医療専門家にご相談ください。
Fertile Window
Window Opens
Fri, Feb 27
Most Fertile
Mon, Mar 2 - Wed, Mar 4
Window Closes
Thu, Mar 5
Next Expected Period
Wed, Mar 18
Cycle Length
28 days
Cycle Overview
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Period Fertile Ovulation
Understanding Your Cycle
Ovulation typically occurs 12-16 days before your next period starts (average is 14 days).
Fertile Window spans 5 days before ovulation to 1 day after, when pregnancy is possible.
Most Fertile days are the 2-3 days before and including ovulation day.
Tips for Tracking
- • Track several cycles to determine your average cycle length
- • Basal body temperature rises slightly after ovulation
- • Cervical mucus becomes clear and stretchy near ovulation
- • Ovulation predictor kits can confirm your fertile window
- • Stress and illness can affect ovulation timing
出典と方法論
公式：
Ovulation Day = LMP + (Cycle Length - 14)Estimated ovulation based on menstrual cycle
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How to Use This Calculator
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