The safe period and the ovulation period are two very important periods in the fertility process. It is very important for women who are planning to become pregnant or are already pregnant to know their own period and safe period. This article will introduce the basics of safe periods and ovulation periods and how to calculate them.

The basic concepts of safe period and ovulation period are determined by measuring women's body temperature and observing women's secretions. A woman's menstrual cycle usually consists of three periods: a safe period, an ovulation period and a dangerous period.

The safe period refers to the period in a woman’s menstrual cycle other than the ovulation period. During the safe period, a woman's egg and sperm cannot meet, so she cannot become pregnant. However, the safe period is not always safe, because sometimes women may release eggs or have special circumstances, such as inflammation or infection.

Ovulation refers to the time during a woman's menstrual cycle when eggs are released from the ovaries. During ovulation, a woman's egg can meet sperm, so if a woman is fertilized during ovulation, she may become pregnant.

How to calculate safe period and ovulation period

The formula for calculating the safe period and ovulation period is as follows:

Safety period:

Cycle days - 14 days = danger period

Cycle days - 8 days = safety period

Cycle days - 17 days = danger period

Ovulation period:

Cycle days - 10 days = danger period

Cycle days - 18 days = safety period

It should be noted that the above formula is only suitable for women with a 28-day or normal menstrual cycle. For women with irregular menstrual cycles, other measurement methods are recommended to determine safe periods and ovulation periods.

Advantages and disadvantages of safe period and ovulation period

The advantage of the safe period and ovulation period is that it can help women avoid the risk of pregnancy and is very useful for women who are planning to become pregnant. However, the disadvantage of the safe period and ovulation period is that it may have a certain impact on women's health.