Ovulation period is 28 days per month

A woman's menstrual cycle usually starts at 28 days and then decreases by one day every 2-3 days. Therefore, if a 28-day cycle is calculated, then the 28th day of each month is the ovulation period.

During this period, a woman's eggs are released from her ovaries and can survive for about 4-5 days. This means that it is possible for a woman to release an egg during this period and for several days afterwards. If a woman releases an egg during this period, it may combine with sperm to form a fertilized egg, thus starting a new life journey.

However, a woman’s menstrual cycle and ovulation period are affected by many factors, including genetics, environment, diet, etc. Therefore, it can be difficult to accurately predict a woman's ovulation period.