Menstrual cycle: safe days

Menstrual cycle: safe days
Methods of calculation

menstrual cycle safe days In today's world there are many means of contraception, and, nevertheless, some women prefer physiological methods of protection from unwanted pregnancy. That is, trying, and often unsuccessfully, to calculate the safe days menstrual cycle. But there is no safe days for sex, sooner or later a healthy woman becomes pregnant, that is both dangerous and very dangerous days.

Undoubtedly, the physiological methods of protection do not have the side effects that have no effect on the body, the sperm of the partner easily penetrates the woman's vagina, which is very good for health, sex is natural and, more importantly, the physiological method of birth control does not require material expenditures. In addition, the position of the Church and other religious denominations physiological methods of contraception is considered the only valid.

Menstrual Cycle and Ovulation

The menstrual cycle - a cyclical changes in the reproductive organs of women. At the end of monthly menstrual cycle starts, spotting, the duration of which is three - seven days. Healthy woman menstrual cycle lasts 21-35 days (ideally 28). The menstrual cycle is divided into three phases: follicular, ovulatory and luteal. Ovulatory phase of the shortest.

Ovulation - the output is mature egg from the dominant follicle. Ovulation occurs about the middle of the cycle (e.g., 14 minutes at 28-day menstrual cycle midnevnom). It occurred to no ovulation or menstrual cycle is divided into safe and unsafe days.

Terms for calculating safe days

Physiological methods of contraception Methods of contraception: what to choose available to women who:

regular, uninterrupted menstrual cycle (as a clock);
Age from 25 to 35 years;
balanced and disciplined woman;
women using spermicides after intercourse.

What should I look for when calculating safe days

In determining the safe and unsafe days to consider a number of factors:
possible maturation of not one, but several oocytes (stress, hormonal disruptions);
egg can mature before the middle of the menstrual cycle and after;
the viability of the egg is 24-48 hours, and in some women, and more;
sperm retain their activity up to five - seven days;
menstrual cycle may change (emotional distress, disease, climate change).

The calendar method of contraception

The calendar method is based on the fact that ovulation occurs in the middle of the menstrual cycle.

That is the conception Conception - as the emerging life possible for the first four days prior to ovulation and for the next four days after ovulation. To calculate the safe days should determine the length of the shortest and longest menstrual cycle in six months. From the shortest cycle is subtracted 18 (for example, 22 - 18 = 4) and of the longest cycle is subtracted 11 (Example 30 - 11 = 19). Thus, to determine the dangerous period (very useful for women who are planning a pregnancy) from 14 to 19-day cycle.

The temperature method of contraception

Temperature method requires measuring basal body temperature in the rectum in the morning.

Thus it is necessary to make measurements in the morning, without getting out of bed in one and the same time and by the same thermometer. In the first phase of the menstrual cycle The phases of the menstrual cycle failures unacceptable basal temperature is below 36, 0 degrees. The day before ovulation occurs a sharp drop in temperature, and then it will rise to 37 degrees or higher and maintained at this level throughout the second phase. The method of measurement of basal body temperature is considered to be the most accurate, and its effectiveness is 90 - 97%. With daily measurement of basal body temperature can determine the day of ovulation so dangerous days for sex will be considered as four days before ovulation and after four days. However, it should be remembered that the method was effective, basal temperature should be measured at least six months to establish a more or less the exact date of ovulation.