Ovulation refers to the time during a woman’s menstrual cycle when an egg is released. For women with regular menstrual cycles, ovulation usually occurs between the 14th and 20th days of the menstrual cycle. However, women with irregular menstrual cycles may need to determine ovulation by taking their temperature, observing symptoms, or using laboratory tests.

Observing symptoms is also one of the common ways to determine ovulation. For example, women may experience increased sexual desire, changes in appetite, increased energy, and more. These symptoms usually appear around the time of ovulation.

Using laboratory tests to determine ovulation is also a good way to determine ovulation. For example, women can determine when they are ovulating by measuring blood hCG levels. hCG levels increase between days 14 and 19 of the menstrual cycle.

While taking your temperature, observing symptoms, and lab tests are all common ways to determine ovulation, these methods aren't always accurate. Therefore, women may need to combine other methods, such as a calendar and a doctor's advice, to determine when they are ovulating.