Rus Articles Journal

Planning of a family: a natural method

of Knowledge of an ovulation are irreplaceable for any married couple. This information will be especially useful to those who plan the child`s birth; however in certain cases the given calculations will be able to become an effective remedy of contraception and will help to avoid undesirable pregnancy.

is A little physiology

Fertile, or reproductive, the period in life of the woman the period during which it is capable to a child-bearing is considered. It begins from the moment of the first periods at the girl (in 10 - 12 years), and comes to an end with approach of a menopause (climax) in 45 - 50 years. At this time the woman under the influence of hormones monthly has cyclic changes in ovaries and an endometriya (an inside layer of a uterus) called by a menstrual cycle. Duration averages it 28+7 days; the cycle is divided into three phases:

  1. of the Follicular (proliferative) phase - the first half of a cycle - lasts of the first day of periods until an ovulation. It is regulated by follikulostimuliruyushchy hormone (FSG) which is released by a hypophysis - gland which is in a brain. FSG starts growth of an ovum in an ovary. Each ovum develops and ripens in a peculiar bubble - a follicle. Though in ovaries several follicles can develop (bubbles with ova), only one of them can reach a sufficient maturity every month. During growth the follicle emits in blood hormone - estrogen. Estrogen stimulates the cages covering a uterus, preparing them for an attachment (implantation) of the impregnated ovum.
  2. the phase falls
  3. of Ovulyatornaya approximately on the middle of a menstrual cycle. It begins in response to considerable rise in concentration of the lyuteineziruyushchy hormone (LH) which is also developed in a hypophysis. Growth of concentration of LG causes a rupture of a mature follicle and release of an ovum at first in an abdominal cavity, and from there - in a fallopiyeva (uterine) pipe. It is called an ovulation. An ovulation - the optimum period for conception.
  4. of Lyuteinovaya the phase comes after an ovulation and lasts until the end of a menstrual cycle. The ovum moves to this period on a uterine tube into which it got from an abdominal cavity. Here it can be impregnated by the man`s sperm. If the ovum and a spermatozoon met, then already impregnated ovum (embryo) moves ahead on a uterine tube in a uterus. Then the embryo is attached to a wall of a uterus and begins to grow. During a lyuteinovy phase the become torn empty follicle in an ovary forms a yellow body which continues to produce female sex hormones estrogen and progesterone. Estrogen and progesterone influence maturing of a uterus and promote development of a nutrient medium for an embryo the cages covering a uterus - endometriy. If fertilization did not come or the embryo was not attached to a uterus, the yellow body stops producing hormones and disappears. In response to it the periods - a new menstrual cycle begin.

of
of

Natural method of planning of a family as contraceptive

of Advantage :
  • absence of risk for health, by-effects and free of charge (at contraception);
  • of involvement of the man in process of planning of a family;
  • possibility of planning of pregnancy;
  • increasing knowledge of reproductive system.
Shortcomings :
  • low efficiency (9 - 25 pregnancies on 100 women during 1 - go years of use);
  • need of abstention from sex life in a fertile phase of a cycle;
  • need of the thermometer for measurement of bazalny temperature;
  • is not protected from diseases, sexually transmitted;
  • are effective
  • only for women with a regular menstrual cycle.

we Consider

days

Knowing physiology of a reproductive system and the periods of fertility of the menstrual cycle, the woman can use natural methods of planning of a family:

  • of for the purpose of conception - planning of sexual intercourse on the middle of a cycle (10 - 15 - y day) when fertilization is most probable;
  • for the purpose of contraception - abstention from sexual intercourse throughout that phase of a menstrual cycle during which the probability of conception is most high. At the same time there is no need for use of medicines, various devices and manipulations.
by

At the natural methods of planning of a family (NMPF) use alternations throughout a menstrual cycle of the periods of the lowered and increased fertility; duration of ability of gametes to fertilization is considered.

When calculating fertility it is necessary to consider that spermatozoa under favorable conditions keep ability to fertilization of an ovum till 5 days, and the ovum is capable to fertilization within 24 hours from the moment of an ovulation.

Meaning a possibility of fertilization, in a menstrual cycle it is possible to allocate three phases (absolute sterility, relative sterility and fertility).

Relative sterility (phase 1) lasts from the first day of a menstrual cycle to an ovulation.

Duration of this phase of a menstrual cycle depends on speed of the response of a follicle to effect of hormones of a hypophysis that, in turn, can depend on an emotional background, on ecological, climatic conditions, etc. That is the ovulation can occur slightly earlier or a bit later depending on these or those factors of external environment.

In this phase sometimes there are difficulties with contraception as duration of a phase can vary from a cycle to a cycle within several days, even at the stable duration of a menstrual cycle in general. This fact; it is necessary to consider also at desire to become pregnant in this cycle, that is it is not necessary to count on one sexual intercourse in day of an estimated ovulation: the result will be guaranteed in the presence of intimacy of 1 times in 2 - 3 days.

the fertility Phase (phase 2) begins with the moment of an ovulation and comes to an end in 48 hours after an ovulation.

These include 48 hours time during which the mature ovum is capable to fertilization (24 hours); the next 24 hours are allotted on inaccuracy of definition of time of an ovulation.

Absolute sterility (phase 3) begins in 48 hours after an ovulation and proceeds until the end of a menstrual cycle. Duration of this phase is rather constant and makes 10 - 16 days.

For example, the first day of periods fell on October 1. At the average duration of a menstrual cycle of 28 days the following periods will begin on October 29, a phase of relative sterility - on October 1 - 14, a fertility phase - on October 14 - 16, a phase of absolute sterility - on October 16 - 28.

If it is about contraception, then it is rational to consider as a phase of absolute sterility the last 10 days of a cycle.

What happen methods?

treat natural methods of planning: calendar (or rhythmic), temperature and method of tservikalny slime.

Calendar (rhythmic) method . In the analysis of a menstrual calendar in 6 - 12 months allocate the shortest and longest cycles. Subtract number 18 from figure of the shortest and receive day of the beginning of the “dangerous“ period, and subtract number 11 from figure of the most long menstrual cycle and learn the last day of the “dangerous“ period. Attention! This method can use only at the strict accounting of all menstrual cycles in a calendar and at small dispersion of a menstrual cycle within a year. If you do not take temperature during - 12 months and did not even note duration of a menstrual cycle on a calendar and cannot tell with an accuracy about stability of a cycle, then this method is not suitable for contraception, and also for calculation of days, optimum for conception.

Attention! by This method can use only at the strict accounting of all menstrual cycles in a calendar and at small dispersion of a menstrual cycle within a year. If you did not take temperature within 6 - 12 months and did not even note duration of a menstrual cycle on a calendar and cannot tell with an accuracy about stability of a cycle, then this method is not suitable for contraception, and also for calculation of days, optimum for conception.

the Least probable days for pregnancy do not exclude completely an opportunity to become pregnant - especially so far as concerns change of climate, the postponed illness, an uneasy mental state.

We will give an example of calculation of the “dangerous“ period at a constant menstrual cycle of 28 days.

Beginning of the “dangerous“ period: 28 - 18=10 - y day.

End of the dangerous period: 28 - 11=17 - y day inclusive.

Duration of the dangerous period is equal to 8 days. It begins on 10 - y day of a menstrual cycle, and comes to an end on 17 - y day.

How to calculate the “dangerous“ period - the most probable days of conception
If your shortest cycle made
(the number of days) your first fertile (dangerous) day If your longest cycle made (the number of days) your last fertile (dangerous) day
21 3 21 10
22 4 22 11
23 5 23 12
24 6 24 13
25 7 25 14
26 8 26 15
27 9 27 16
28 10 28 17
29 11 29 18
30 12 30 19
31 13 31 20
32 14 31 21
33 15 33 22
34 16 34 23
35 17 35 24

Temperature method . This method of definition of an ovulation is based on registration central and local hyper thermal (i.e. connected with temperature increase) effect of progesterone. Change of bazalny temperature (temperature in a rectum) is made in the morning, at the same time. The woman, without getting up, inserts the thermometer into back pass on depth of 4 - 6 cm. Duration of measurement is 5 - 7 minutes. Indications of the thermometer are written down or at once applied on a “temperature“ curve, and the thermometer is washed with soap. It is undesirable to use the same device and for measurement of axillary temperature (in an axillary hollow). In the first half of a menstrual cycle temperature in a rectum usually is below 37 °C, in the middle of a cycle before day of an ovulation it sharply falls, and then raises to 37,5 °C. The moment of an ovulation is distinguished, analyzing a curve, on recession of temperature on 0,2 - 0,4 °C and to the subsequent rise on 0,6 - 1,0 °C. Days of transition of temperature from low figures to high are the period, probable for conception. Knowing the day ovulations, the woman defines the period of ±5 days as probable for conception.

When to couple cannot use
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EMPS for contraception?

  • if the woman has an irregular menstrual cycle;
  • if partners do not wish to abstain from sex life in certain cycles;
  • right after abortion, childbirth;
  • if the age of the woman, the number of childbirth in the past or make her state of health pregnancy of dangerous.
In all these cases needs to consult with the gynecologist and to pick up a contraception method taking into account specific features of a married couple.

If on the eve of the periods expected monthly and especially in time assumed, but late a little increased temperature in a rectum remains, then it allows to suspect already arisen pregnancy.

This method of definition of the period of the increased fertility assumes normal zhilishchno - living conditions (the certain room), sufficient discipline of the woman and an exception of haste in the mornings. The period of the increased fertility is necessary a thicket on 7 - 18 - y days of a cycle; it is 10 - 15 even more often - y days.

Method of tservikalny slime . After the termination of menstrual bleeding within one or several days lack of slime and area of a vagina to the touch dry is observed. These are so-called “dry days“.

Before an ovulation in a vagina slime which at the time of an ovulation becomes viscous begins to be emitted.

In 3 days after emergence of sticky, viscous slime there comes the phase of sterility during which, prior to the beginning of the following periods, pregnancy will be impossible.

If natural methods of planning of a family were applied with motivation of approach of pregnancy and it did not come within a year, inspection of a married couple concerning infertility in specialized institution is necessary.