Despite the fact that today there are many different means of protection against unintended pregnancy, not all women have resorted to their aid.Some avoid the acquisition of contraceptives for financial reasons, others can not choose a method that gave them a couple, and someone irregular sexual life, so constantly swallow tablets or impractical to put a spiral.
Almost all women have heard about the phenomenon, as safe days of the cycle in which it is impossible to conceive.But not everyone knows how to calculate these days.Let's speak about the most popular method used today
But before proceeding to an explanation of how to calculate the safe days of the cycle, it is worth to warn that the effectiveness of these methods is very low.To resort to this method of protection may be advisable only for those women who have a steady menstrual cycle.That is, to recommend this method of contraception can be ladies aged 25-35 years, prone to colds, do not have the stress, there is no frequent business trips.In short, the percentage of women who can use the method, focused on safe days of the menstrual cycle, is very small.I suggest it is possible unless couples who, in principle, not against the birth of a baby, but have not yet begun to actively plan.
Secure days of the cycle can be calculated based on the method of Ogino-Clauss.The main point of this method lies in the fact that ovulation in women falls, as a rule, in the middle of the cycle.That is, if the break between periods of 28 days, the egg ripens 13-14 days.Itself egg remains viable for two days, but the sperm can remain in "working" condition for about three days.Therefore, to calculate the safe days of the cycle, to date, to be released when the egg added four days before and after the expected date.That is, in an ideal cycle, there is a risk of pregnancy during the period from the ninth to the eighteenth day.Other days considered safe.
The effectiveness of this method is only 30%, since only a small number of women have never happens in a cycle of failure.Offset time of ovulation can cause stress, colds and many more variety of reasons.
There are other methods to control the female cycle.Secure days can be calculated based on the analysis of vaginal secretions.During the release of the egg whites become more liquid, and after the process of ovulation - gathering.It is believed that after three days, after separation became more dense, can not be pregnant.However, not every woman is capable of such a qualitative assessment of the nature of their secretions.Furthermore, various diseases (e.g., colpitis) casting a picture, making this method useless.
One of the most accurate, but also quite sophisticated ways to control female cycle, is the measurement of the so-called basal body temperature.To measure this parameter should be every day, from the first day of the cycle, and the measurement time should be at least 5 minutes.Putting the thermometer should be in the morning, before the woman got out of bed, it is important for a woman to start measuring slept at least six hours.Sexual contact, which occurred the day before or the morning, nullifying the information content of measurements.Also reduces the effectiveness of the method of use of alcohol and certain drugs.
To find out when the safe days are coming, it is necessary to build a graph of temperature.Before ovulation, the temperature is usually kept within 36,4-36,5 degrees.In dangerous time figures are sharply reduced, and in the second half of the cycle are higher (about 37 degrees).To be able to make a more or less reliable conclusions should be carefully measure the temperature for at least three cycles.
dangerous is the day of ovulation (the temperature plummeted) and another two or three days afterwards.On all other days, the chance of pregnancy is low.
