排はい卵らん日び

noun

ovulation day

Refers to the day of ovulation, often used in contexts of fertility, pregnancy planning, or contraception. Compare with 危険日 (dangerous day) for the fertile window.

See also: 危険日

• 排はい卵らん日びを予よ測そくするアプリを使つかっています。

  I use an app to predict my ovulation day.

• 排はい卵らん日びは妊にん娠しんしやすい日ひです。

  Ovulation day is a day when you are likely to conceive.