Ovulation refers to the days in a woman's menstrual cycle, usually between day 14 and day 20 of the menstrual cycle. During this period, a woman’s eggs will mature and be released, which is one of the most reproductive periods for women.

So, how to accurately determine whether you are ovulating? Here's how:

1. Measure basal body temperature: Measure basal body temperature every day and record changes in body temperature. During ovulation, a woman's basal body temperature usually rises by 0.5 to 1 degree Celsius.

2. Observe symptoms: Observe whether you have a series of symptoms, such as increased appetite, high energy, breast swelling, etc. These symptoms usually appear during ovulation.

3. Use a pregnancy test stick: Use a pregnancy test stick to test whether you are pregnant. During ovulation, the pregnancy test may show two bars, indicating pregnancy.

4. Doctor’s examination: If a woman is not sure whether she is ovulating, she can consult a doctor. Doctors can confirm pregnancy by testing blood or urine.

To sum up, determining whether you are ovulating requires some observation and testing. However, since everyone's physiological situation is different, it is best to consult a doctor to confirm whether your judgment is correct.