妊娠・妊活
WHO、NHS、ACOG、ACSMの基準に基づく、体組成・栄養・妊娠・心臓の健康に関する計算ツールです。
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Gestational Age Calculator
Find out how many weeks pregnant you are from your last period or due date. Shows trimester, estimated due date and days remaining, per ACOG dating.
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出産予定日計算
最終月経日、受精日、または体外受精の移植日から、ACOGのネーゲレ概算法とASRMの慣例に基づいて出産予定日を推定します。無料でご利用いただけます。
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Ovulation Calculator
Find your ovulation date and six-day fertile window from your last period and cycle length. Based on Wilcox et al. NEJM 1995. Free, private, no sign-up.
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Fertility Window Calculator
Calculate your broadest possible fertile window from a range of cycle lengths. Designed for irregular cycles using earliest and latest ovulation estimates.
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Conception Date Calculator
Estimate when conception likely occurred from your due date or birth date. Uses the 266-day (EDD minus 266) reverse formula with a ±3-day window.