The accurate way to calculate ovulation is as follows:

In order to help you calculate more accurately, it is recommended that women take the following methods:

1. Record basal body temperature: Women can measure their body temperature when they wake up every morning and record it in their diary. Basal body temperature refers to the body temperature measured without any activity. By recording basal body temperature, women can know when is the best time to ovulate.

2. Observe cervical mucus: During a woman’s ovulation period, cervical mucus will become thicker and darker. By looking at cervical mucus, a woman can know when her best period is for ovulation.

3. Measuring serological tests: Women can learn about their fertility by measuring serological tests. Serological testing includes testing of HCG and progesterone levels, which can help women understand whether they are in optimal fertility.

4. Follow a healthy lifestyle: Women should follow a healthy lifestyle, including a balanced diet, moderate exercise, stress reduction, etc. These healthy lifestyle options can help women increase their fertility and ensure optimal health.

Calculating ovulation is not always accurate, and women should take a variety of approaches to ensure optimal health and optimal fertility. If a woman needs a more precise calculation, it is recommended to consult a doctor or a professional fertility specialist.