What is the safe period and what is the principle of contraception during the safe period? Early to know, early to benefit

Traditionally, 7 days before and 8 days after menstruation are safe periods for adult women. In addition to the calendar days, there are also basic observations of body temperature and secretions. However, the safety period is not absolutely safe. Sometimes women ovulate earlier or later. Judging the safe period only reduces the risk of pregnancy.

Women of normal reproductive age undergo menstruation every 28 days, and the first day from menstruation to the next menstruation is called a menstrual cycle. For example, in terms of contraception, women's menstrual cycle can be divided into menstrual cycle and safe cycle. Ovulation contraception is a contraceptive method that stops sexual activity during ovulation. This is one of the most commonly used contraceptive methods both domestically and internationally.

The ovulation period of women is generally around 14 days before the next menstrual cycle. After the egg is discharged from the ovary, it survives in the fallopian tube for 1-2 days and can wait for male sperm to remain viable in the female reproductive tract for 2-3 days.

The safety period is divided into pre ovulation safety period and post ovulation safety period The date from menstrual cleaning to three days before ovulation is the safe period before ovulation. The first day after ovulation and the first day of the next menstrual cycle are the safe periods after ovulation. Generally speaking, the safe period after ovulation is safer than the safe period before ovulation. This is because some women are sometimes affected by environmental changes and emotional fluctuations, leading to a shortened safety period before ovulation. In this way, the safety period before ovulation is incomplete. The likelihood of the ovaries ovulating twice during the menstrual cycle is relatively low, meaning that after ovulation and before the next menstrual cycle, they usually do not ovulate again. The safe period after ovulation is safer.

The key to using birth control is to measure a woman's ovulation day. Ovarian ovulation usually does not have a special sensation, and some women may experience lower abdominal pain, back pain, breast swelling, and emotional changes, but these phenomena are not unique symptoms of ovulation. Therefore, it cannot be used as the basis for ovulation. Menstruation is closely related to the cyclical changes of ovulation. If the changes in both are mastered, the ovulation date can be indirectly measured. There are many methods for measuring ovulation date. Women can calculate their basic body temperature based on their menstrual cycle and observe the secretion of cervical mucus.

When using safe contraception, the first step is to accurately measure the ovulation cycle. The three methods for measuring ovulation cycle each have their own advantages and disadvantages: the calendar method can be used to calculate the ovulation cycle and the safe period before and after ovulation. But it is only suitable for women with normal menstruation, sometimes due to changes in environmental emotions, ovulation may occur early or late.

Basic body temperature method: Date of ovulation and safe period after ovulation. The safety period before ovulation can be quite troublesome, such as not measuring body temperature according to regulations. The ovulation period cannot be accurately measured

Cervical mucus observation can measure the safe cycle during and before ovulation, but users must undergo sufficient training before use. By combining these three methods, one can leverage their strengths and avoid weaknesses.

At least one couple can master the method of measuring ovulation period. If you cannot master this method, you cannot use a safe contraceptive period. Safe period contraception is stopped during ovulation and requires close cooperation from men or cannot be used. Of course, topical contraceptives can also be used during ovulation.

It is easy to fail using a calendar for birth control. Because some women sometimes delay ovulation and calculate their menstrual cycle due to physical health, environmental changes, and emotional fluctuations.

According to foreign statistics, the failure rate of calendar based birth control is 14.4%~47%. Therefore, this method is only applicable to people with normal menstrual cycles, long-term living together, and the ability to accurately calculate the safe period. This method is unreliable, such as couples with abnormal menstrual cycles or women who change their living environment. Physiological contraception is only applicable to the menstrual cycle of long-term cohabitation.

Both parties can cooperate to understand each other, but due to their low security, please note the following points.

Many diseases, such as endocrine and kidney diseases, alter women's ovulation time. During this period, the use of safe contraception often leads to contraceptive failure.

Menstrual intercourse generally does not lead to pregnancy, but there may be unexpected ovulation during menstruation, which can easily cause infections.

If a woman is in menopause and there is a small amount of vaginal bleeding, she should be in the same room on the the fourth day after the blood flows out. Because blood may be the result of ovulation.

(4) If you switch from oral contraception to physiological contraception, there may be additional ovulation or irregular menstruation, and you may stop taking contraceptives. Therefore, in recent months, it is advisable to avoid using safe contraceptive methods as much as possible.

Finally, I would like to remind female friends that safe period contraception may not necessarily be safe. Please choose a better contraceptive method based on your specific situation.