Ovulation Calculator

The Ovulation Calculator predicts your most fertile days based on your last period date and cycle length.

You may notice increased cervical mucus, a rise in basal body temperature, or mild pelvic pain, all signs of ovulation.

Some believe that timing intercourse can influence gender, but scientific evidence for this is limited—our Ovulation Calculator simply helps identify your fertile window.

Yes, ovulation can occur without a period, especially if you have irregular cycles, PCOS, or recent childbirth—tracking signs of ovulation is important.

It provides an estimated fertile window, but for precise tracking, use ovulation test strips or measure your basal body temperature daily.

Yes, stress, illness, or extreme weight changes can delay or prevent ovulation. Managing stress and maintaining a healthy lifestyle can help.

Ovulation itself lasts 12-24 hours, but your fertile window (when sperm can survive in your body) lasts 5-6 days around ovulation.

Some women experience double ovulation, but it’s rare—this can lead to fraternal twins if both eggs are fertilized.

The 2-3 days before ovulation and the day of ovulation are the best times to increase your chances of pregnancy—our Ovulation Calculator helps pinpoint these days.

Hormonal birth control stops ovulation by regulating hormone levels, and it may take a few months for ovulation to return after stopping contraception.