Use this calculator to estimate the dates of your next period or ovulation days based on your cycle length and the first day of your last period. This tool is for informational purposes and can help you track your cycle.
Period tracking helps you predict the start date of your next period and the most likely ovulation days. Tracking your menstrual cycle can help you understand your body's rhythm and fertility window.
The next period date is calculated by adding the average cycle length to the first day of your last period. Ovulation is typically assumed to occur about 14 days before your next period starts, with the fertile window being a few days before ovulation.
While the period and ovulation dates estimated by this calculator can be helpful, keep in mind that menstrual cycles can vary. Factors like stress, illness, or changes in diet can affect the timing. Always consult a healthcare provider for personalized advice.