Ovulation refers to the time during a woman’s menstrual cycle when eggs are released from the ovaries and enter the fallopian tubes to wait for fertilization. Normally, a woman's menstrual cycle lasts 28 days, and ovulation occurs between the 14th and 19th days of the menstrual cycle.

So, does 4 days after menstruation mean that we are in the ovulation period? In fact, there is no simple answer to this question. Because a woman's menstrual cycle is affected by many factors, calculating ovulation is not an easy task.

The best way to determine if you are ovulating is to observe your menstrual cycle and symptoms. If your menstrual cycle is regular and you usually have menstruation every month, you can observe changes in your sexual desire, body temperature, symptoms, etc. between the 14th and 19th days of the menstrual cycle.

If you are unsure about your menstrual cycle and symptoms, or if you want to more accurately determine whether you are ovulating, it is recommended to consult a doctor or a professional fertility specialist. They can use advanced laboratory equipment and tools to calculate a more accurate ovulation period based on a woman's menstrual cycle and symptoms.