Post Date September, 06 2023
1. Calendar method
Women with regular menstrual cycles usually have their ovulation period around 2 weeks before the next menstrual cycle. If 4-5 days before and after ovulation are the most fertile period, it is called abstinence period, while 7-10 days before and after menstruation are the less fertile period, it is called safe period, that is, the less fertile period. Due to the fact that the safety period is calculated based on the start date of the next menstrual cycle, it is called the calendar method. From this perspective, the precepts are relatively short.
2. Temperature method
The temperature method displays ovulation time by recording daily basal body temperature. If the body temperature is measured and recorded every morning when waking up, a typical basal body temperature curve can be obtained, which is an increase in progesterone content during ovulation, which may lead to an increase in body temperature. Generally, sexual intercourse should be avoided within 2-4 days after menstruation until the temperature rises. If the temperature rise is not detected throughout the menstrual cycle, sexual intercourse cannot be performed because it is not known when ovulation will occur.
Using Bilin to determine the safe period of ovulation is a new method that mainly determines ovulation time through changes in cervical mucus, but it is not widely applicable and requires further research.
There has always been controversy about the effectiveness of contraceptive methods during the safe period. Although the prohibition period of the calendar method is short, its effect is questionable. Due to the complex factors that affect ovulation during the menstrual cycle, the failure rate is very high. The temperature method is also insufficient, and about 20% of the basal body temperature curve of ovulatory menstrual cycles cannot show ovulation, and the fasting time is also very long. If sexual intercourse is allowed before and after ovulation, the failure rate is approximately 10-20 per 100 women's years. If sexual intercourse is limited to after ovulation, the failure rate decreases to 0.3-6/100 women's years.
The results show that contraception is more effective in sexual intercourse after ovulation, but couples who use body temperature and calendar methods are more common. The emotions and emotions of both spouses are constantly changing, and sometimes they may find it difficult to fulfill their wishes. At this point, in order to avoid unpleasant arguments between couples, relatively safe positions can be adopted during sexual intercourse to reduce the chance of pregnancy.
The riding posture is the upper body posture of a woman, which is particularly suitable for tired men. Because the wife is on top, it increases her dominance and may increase her excitement. Both parties can freely adjust their positions and see each other's bodies. With this method, semen can flow out of the vagina, reducing the number of sperm reaching the cervix and thus reducing the chance of conception.
The other is the front side position, where both spouses lie on their sides at the same time. This is the simplest posture and can even be inserted into the penis. Suitable for middle-aged and above population. The mechanism of this type of contraception also lies in reducing the number of sperm entering the cervix. In addition, after sexual intercourse, even if the wife urinates immediately, semen will be excreted, which helps to reduce the pregnancy rate. There is no one of these methods, of course, the contraceptive effect is only a temporary measure.
