Menstrual cycle and the methods for calculating safe days

Despite the availability and abundance of various contraceptive methods, not all resort to their help to protect against unwanted pregnancy. Someone in the first place there are financial problems, someone too lazy to use them, and the rest live in irregular sexual life. Many women, not just women, have heard of such a thing as the presence of the menstrual cycle The menstrual cycle - that occurs in different phases?   safe and unsafe days. But not everyone knows how to count the days when pregnant How to Get Pregnant: Recommendations to help   impossible. It should make a reservation that, even knowing its safe days, an absolute guarantee of protection against pregnancy is not.

The method Ogino-Clauss

The base of the method is that menstruation comes two weeks after ovulation. The very same ovulation occurs around the middle of the menstrual cycle. For example, if the menstrual cycle is 28 days, ovulation will be around for the thirteenth - fourteenth day, and 14 days will come monthly. According to the method Ogino-Clauss considered that viable sperm up to three days and the egg can live for a maximum of two days (some men viability of sperm reaches seven days or more).

The calculation of safe days carried out as follows: a prospective release dates egg from the ovary add two before and after. That is, for the twenty-eight day menstrual cycle this will be the eleventh and sixteenth days. To eliminate the error in the calculation of the figures to add two more days before and after. These days, from the ninth to the eighteenth are dangerous, and on the other days of the menstrual cycle, pregnancy is impossible. The effectiveness of the method, is only thirty percent.

Method Billings or tactile method

This method is based on the change in vaginal secretions during the menstrual cycle. At the time of ovulation occurred mucus from the cervix become watery and transparent, which facilitates the penetration of sperm into the uterus. Thickening cervical secretions and reducing their number indicates the release of an egg from the ovary and enters it into the fallopian tube. This period is most favorable for conception Conception - as the emerging life .

Proponents of the method Billings, that after three days from the beginning of condensation secret safe days are coming. The disadvantage is that not every woman is able to assess the mucus on the eyes. Furthermore, the presence of inflammatory processes of female reproductive organs (in particular colpitis) method is inefficient.

The method of measurement of basal body temperature

Perhaps the basal body temperature method is the most reliable. By measuring the basal temperature and making a graph, you can determine the day of ovulation. To obtain reliable data, you must observe the following rules:

• measuring the temperature must be the first day of the menstrual cycle;
• measurement duration is five - six minutes;
• measure the temperature should be in the morning without getting out of bed;
• temperature measurement should be after six hours of uninterrupted sleep;
• in the case of sexual intercourse the day before or the morning of the measurement data is not informative;
• taking certain medications or drinking alcohol reduces the reliability of the results.

After plotting for at least three menstrual cycles is determined by the day of ovulation. In the first phase of the cycle the temperature will fluctuate within 36, 2-36, 4 degrees. On the day of ovulation will occur a sharp drop in temperature curve, and then the temperature rises to higher numbers (37, 0 and above). Dangerous days are the day of ovulation, plus a couple of days afterwards. All the days that followed are safe.

Anna Sozinova

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