How many days before your period are you at risk?

You are generally at risk of pregnancy during your fertile window, which typically occurs about 5 days before ovulation and the day of ovulation itself. For most women with a regular 28-day cycle, ovulation usually happens around day 14, so the risk can extend from about day 9 to day 14 of the cycle. However, cycles can vary, and factors such as cycle length and irregularities can affect this timing. It's important to track your cycle for more accurate predictions.