Find your most fertile days and ovulation window. Enter the first day of your last period and your cycle length for instant results.
Ovulation typically occurs about 14 days before your next period (not 14 days after your last period). For a 28-day cycle, this is around day 14. For a 35-day cycle, it's around day 21.
The fertile window lasts about 6 days — the 5 days before ovulation and ovulation day itself. Sperm can survive in the reproductive tract for up to 5 days, so intercourse before ovulation can still result in pregnancy.
Signs of ovulation: Change in cervical mucus (becomes clear and stretchy like egg whites), slight increase in basal body temperature, mild pelvic pain or cramping.
These dates are estimates based on average cycle patterns. Cycle lengths vary significantly between individuals. Consult a healthcare provider for personalized advice.