Inaccurate calculation of the ovulation period may affect a woman's reproductive health. Therefore, if you suspect that your ovulation period is inaccurate, you should take timely measures to correct it.

Here are some ways to help women calculate accurate ovulation:

1. Measure basal body temperature: Women measure their body temperature when they wake up every morning to record body temperature changes. By comparing changes in basal body temperature, a woman's ovulation period can be determined.

2. Use a calendar: Women can record their menstrual cycles and determine their ovulation period according to the time on the calendar.

3. Measure basal body temperature: Women can measure basal body temperature every day and record body temperature changes. By comparing changes in basal body temperature, a woman's ovulation period can be determined.

4. Use medication: Women can correct their ovulation by taking medication, for example, using a calendar calculator or medication to adjust their menstrual cycle.

The above methods can help women calculate the accurate ovulation period, but please note that these methods cannot guarantee absolute accuracy. Therefore, if you suspect that your ovulation period is inaccurate, it is recommended to consult a doctor.