Rhythm method is a physiological method of contraception. In a safe period, sex life is conducted in the normal state, can be satisfied with the sexual pleasure. But merely making use of the rhythm method is not safe. As women’s ovulation may be subject to emotional, health conditions or the external environment which bring the impact of various factors such as delayed or ahead of schedule and, therefore, an additional ovulation may occur, etc., leading to contraceptive failure.
First of all, the ovulation period should be accurately determined when using rhythm method. Three kinds of methods used to determine the ovulation period have their advantages and disadvantages:
First, the calendar method can be used to determine before ovulation, ovulation, and after ovulation. But it applies only to normal menstruation right, as to those who make ovulation ahead or delay because of sometimes emotional changes or environmental changes, it doesn’t work.
Second, measuring basal body temperature method can determine the safe period of just ovulation and the safe period of after ovulation, but it is not accurate when it comes to determining a pre-determined safe period, and this method is sometimes inconvenient, the requests are strict, if not measuring body temperature, it can not accurately determine ovulation date.
Third, cervical mucus observation method can determine three ovulation period, and it is more exact, but users must be trained in total control before use.
If combining three methods to use, it will be able to exceed and achieve the best contraceptive results. The couple at least one party must grasp the method, if not, it will fail. Rhythm method is to stop ovulation sexual intercourse, which need to be closely coordinated with the man, which would otherwise not be used. Of course, the use of contraceptives is also effective.
In addition, the West the latest research found that sperm can survive in the vagina up to 8 days. This means that, in fact, ovulation period before and after 8 days of pregnancy without contraception is also possible. This also means that, even in the menstrual period sexual intercourse, there is still the possibility of pregnancy, but only a very low probability. Therefore, rhythm method is not very reliable, the chances of failure does exist.
The use of rhythm method should be noted:
1. The rhythm method is only applicable to the female menstrual cycle more regular.
2. Because of women’s menstrual cycles are subject to the impact about emotion and disease, safe period calculations have high failure rate of contraceptive, it is proposed rhythm method should be combined with other methods to use.
3. Calculations rhythm does not apply to the menstrual cycle, less than 21 days, more than 35 days, and postpartum or breast-feeding in women.
4. Use of rhythm, it is recommended you take a record of the menstrual cycle half a year in order to understand the menstrual regularity.
5. In addition to the rhythm, but also with basal body temperature measurement, observation and changes in leucorrhea determine the date of ovulation, so as to better judge the safe period.
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