There are many ways to determine the day of ovulation. Here are a few common methods:

2. Observe symptoms: Some women will experience symptoms during ovulation, such as vaginal bleeding, changes in appetite, increased energy, etc. Observing these symptoms can help determine when you are ovulating.

3. Use a pregnancy test stick: Using a pregnancy test stick can help determine whether you are pregnant. The pregnancy test stick can test during the ovulation period.

4. Observe the AA date: If you are married and want to have children, you can determine the ovulation period by observing the AA date. Generally speaking, ovulation occurs within 2-3 days after AA.