Kostenloser Ovulation Rechner
Berechnen Sie Ihren ovulation day und fertile window based on your cycle length. Kostenloser ovulation Rechner.
Ovulation Expected on Cycle Day
14
Ovulation Expected on Cycle Day vs Days Since Period Started
Formel
Ovulation Timing
Ovulation typically occurs 14 days before the next period, not 14 days after the last one.
Ovulation Day = Cycle Length - 14
The fertile window spans from 5 days before ovulation through 1 day after, because sperm can survive up to 5 days and the egg lives about 24 hours.
Example Cycle Lengths
Lösungsbeispiel
A 28-day cycle, currently on day 10.
- 01Ovulation day = 28 - 14 = Day 14
- 02Fertile window = Day 9 to Day 15
- 03Days until ovulation = 14 - 10 = 4 days
Häufig Gestellte Fragen
How do I know when I ovulate?
Signs include a slight rise in basal body temperature, changes in cervical mucus (becomes clear and stretchy), and sometimes mild pelvic pain. Ovulation test kits detect the LH surge.
Can you get pregnant outside the fertile window?
It is very unlikely. The fertile window accounts for sperm survival (up to 5 days) and egg viability (12-24 hours). Outside this window, conception is extremely rare.
What if my cycles are irregular?
With irregular cycles, ovulation prediction is less reliable. Track cycles for several months and use the average, or use ovulation predictor kits for more accuracy.
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