Question 1

When do I ovulate?

Accepted Answer

Ovulation typically occurs about 14 days before the start of your next period. For a standard 28-day cycle, this is around day 14. For longer cycles (e.g., 35 days), ovulation occurs around day 21. The luteal phase (after ovulation) is relatively constant at 12–16 days.

Question 2

What is the fertile window?

Accepted Answer

The fertile window is the 5–6 day period around ovulation when conception is possible. Sperm can survive for up to 5 days, and the egg is viable for 12–24 hours after ovulation. The most fertile days are the 2–3 days before ovulation and ovulation day itself.

Question 3

How accurate is an ovulation calculator?

Accepted Answer

Ovulation calculators are estimates based on average cycle length and assume regular cycles. They are best used as a general guide. For greater accuracy, combine with basal body temperature (BBT) charting or ovulation predictor kits (OPKs), which detect the LH surge before ovulation.

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Kalkulator Owulacji

O narzędziu

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Często zadawane pytania

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Kalkulator Owulacji

O narzędziu

Jak używać

Często zadawane pytania

How long is the fertile window?

Is this reliable for birth control?

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Kalkulator Owulacji

O narzędziu

Jak używać

Często zadawane pytania

How long is the fertile window?

Is this reliable for birth control?

Related Tools