8 rules of conception: how to conceive a child

8 rules of conception: how to conceive a child 14 4.5

Planning

8 rules of conception: how to conceive a child

For a family that wants to have a child, the theme of conception becomes the most relevant and interesting.

For a family that wants to have a child, the theme of conception becomes the most relevant and interesting. Несмотря на изобилие всевозможной информации о зачатии, момент зарождения жизни во многом до сих пор остается загадкой, что нередко приводит к появлению самых нелепых мифов о физиологии естественного наступления зачатия.

How often to have sex

There is an opinion that conception depends on the frequency of sex. That is, in order for pregnancy to occur sooner, it is necessary more often have sex. The emergence of this popular myth is explained quite simply: since conception occurs as a result of intimate relationships, people try to logically connect these two facts. In fact, there is no connection between the frequency of intimate relationships and the probability of conception.

One sexual intercourse is enough for fertilization; most likely conception during ovulation (the exit of a mature egg from the ovary), which usually corresponds to the middle of the regular menstrual cycle (12-16th day from the first day of the previous menstruation with a cycle of 24 to 32 days). The only factor of marital relations, which really increases the probability of conception, is the regularity of intimacy with one and the same partner; but the rhythm of the sexual life of the spouses can be individual and the likelihood of the onset of conception does not exactly affect.

Long-term abstinence

Long-term abstinence повышает шансы на зачатие. Согласно такой рекомендации, нужно «экономить силы» for conception. However, there is no connection between the frequency of intimate life and the increase in the probability of conception here. The positive effect of prolonged abstinence in order to increase the chances of conception is altogether questionable: artificial long-term abstinence from sex in the presence of sexual desire is fraught with the development of venous stasis in the pelvic vessels of both spouses, and this can lead to varicose veins of the pelvis and the appearance of chronic pelvic pain, and there is a possibility of infertility.

Sex only in ovulation

Для благополучного зачатия нужно have sex only in ovulation. In this council, as the saying goes, truth and fiction have mixed up: on the one hand, the probability of conception at the time of ovulation is really maximum, on the other - it is completely unclear why one should not perform conjugal duties on less "happy" days? Apparently, here again comes into force a natural fear for a man in vain to spend energy, "not dokopit" the necessary potential until the cherished day of "X".

Despite the share of truth about the high probability conception into ovulation, the council can not be called correct. Firstly, the date of ovulation can move much closer to the beginning or end of the cycle, and not to occur in its middle, even with completely regular menstruation. Such changes in the schedule may be caused by stress, climate change, physical stress, a recent illness, or just a small hormonal fluctuation that is normal in a healthy woman. Thus, the middle of the cycle is just the most frequent, but not necessarily compulsory, time for the maturation of the egg and its exit from the ovary.

A method that allows to accurately fix the moment of the release of a mature egg from the ovary does not exist: even ultrasound, considered in this area as the standard of diagnosis, still allows the probability of an error in the determination the moment of ovulation. Домашние методы, например, тесты на овуляцию или измерение базальной температуры, также не дадут 100%-ной гарантии, что наступила овуляция. А это значит, что, неверно рассчитав дату наступления овуляции и занимаясь сексом лишь в эти дни, супруги вовсе не повышают, а, наоборот, снижают шансы на зачатие ребенка в этом менструальном цикле. Ведь яйцеклетка живет всего 24 часа, и если она не встретится со сперматозоидом, то беременность не наступит. При регулярной же интимной близости более длительно живущие сперматозоиды (до 1 – 1,5 недель) могут дождаться the moment of ovulation и оплодотворить яйцеклетку.

Во-вторых, иногда бывает, что в результате небольших гормональных сдвигов за один цикл происходит овуляция в обоих яичниках – т.е. созревают и готовы к оплодотворению сразу две яйцеклетки; при этом интервал между соседними овуляциями может быть растянут в пределах 7–10 дней. Очевидно, что при таком сценарии цикла совет have sex только в дни ожидаемой овуляции (12–16-й день) также оказывается проигрышным и лишь снижает шансы на скорое наступление беременности. При полиовуляции возможно наступление беременности даже в это время – ведь вторая яйцеклетка может овулировать как раз в это время, когда первая уже погибла. Однако использовать эту информацию как руководство к действию все же не стоит – Sex with menstruation often becomes a cause of inflammation of the genitals, because when tearing the uterus during menstruation, the organ inside is a wound surface, and penetration into the uterus of microbes can easily lead to inflammation.

Orgasm and conception

No orgasm - no conception. The authors of this myth are convinced that for the onset of pregnancy during sex future mom must certainly get a sexual relaxation - an orgasm. Justify this method of conception planning as follows: during orgasm, the vaginal environment becomes alkaline, which greatly facilitates the movement of spermatozoa to the egg. And since the speed of movement of spermatozoa largely depends on probability of conception (the life span of both sex cells is limited, and they literally need to be in time to meet), the chances of conception increase dramatically. Logic in such reasoning, of course, is; However, placing too high hopes on this relationship is not worth it. The main factor on which the possibility of conception depends is the onset of ovulation; If this has not happened yet, the "sprinting abilities" of spermatozoa will not accelerate the onset of conception.

How to conceive a child

Nutrition and chances of conception

Chances of conception depend on nutrition. This idea can not be called absolutely wrong - the diet of future parents does have a significant impact on health in general, and on the reproductive sphere in particular, on which the possibility of conception depends. That is why a couple who consulted a doctor, first of all, is recommended to review the diet and follow a balanced diet. However, unfortunately, many people understand this recommendation wrongly and begin to strengthen the diet in the direction of increasing the calorie content of food. It is generally accepted that for health future parents it is useful to eat "for two", preferring products with an abundance of proteins and fats of animal origin. This opinion is incorrect - and not only with reference to the period of pregnancy planning: such a rich diet is extremely unfavorable for health.

High-calorie nutrition is appropriate only in cases of excessive physical exertion; in other cases it inevitably leads to an increase in the blood level of cholesterol and its deposition on the walls of the vessels with the formation of atherosclerotic plaques, narrowing the lumen of the vessels. Excessive intake of cholesterol into the body is a high risk factor for the development of obesity, hypertension (persistent increase in blood pressure), disruption of the heart, liver and kidneys. At the work of the reproductive system, such nutrition also affects sharply negatively, both for women and for men.

However, the very idea of ​​correcting the diet before conception really relevant - especially for the future of the pope. Family planning experts recommend that men reduce the consumption of fatty and spicy food, floury, and try to exclude cream sauces, mayonnaise, fast food and canned foods from the daily ration, since they can reduce the male potency and activity of spermatozoa. Probability of conception is increased by seafood, low-fat varieties of fish and meat, greens, nuts, legumes, fruits and berries. The predominance of these products in the diet contributes to increased male sexual activity and a decrease in the viscosity of sperm, stimulate spermatogenesis (the formation of sperm in the testes), positively affect the speed of movement of spermatozoa. It is from these male factors that the probability of pregnancy depends.

Horizontal position

Для наступления зачатия future mom должна полежать в horizontal position после полового акта. Этот миф имеет большое количество модификаций и уточнений. Например, многие убеждены, что зачатие возможно только в миссионерской позиции (поза, при которой женщина лежит на спине, а мужчина находится сверху). Другие утверждают, что для благополучного зачатия женщина должна не менее нескольких минут (а по некоторым версиям – не менее часа!) оставаться в horizontal position. Наконец, есть рекомендация лежа на спине, поднимать ноги вверх, делать «березку» после полового акта, т.е., лежа на спине, поднять таз и вытянуть ноги вверх – весьма популярный способ, вовсю обсуждаемый на материнских форумах в Интернете. Несмотря на столь различные вариации, суть всех перечисленных ухищрений сводится к одному: чтобы после полового акта сперма не вытекла из влагалища.

Sperm is a kind of environment, optimal for preserving the "fighting qualities" of spermatozoa, and consists of spermatozoa and seminal fluid. Semenic fluid is necessary for transporting spermatozoa along the spermatic cord and separating them into the vagina at the time of ejaculation (ejaculation). However, hitting the vagina, male germ cells уже не столь зависимы от семенной жидкости; сразу после семяизвержения они устремляются в канал шейки матки, а семенная жидкость остается во влагалище. Таким образом, вытекание или сохранение семенной жидкости во влагалище не влияет на probability of conception. На продвижение сперматозоидов навстречу яйцеклетке поза женщины тоже никоим образом не влияет, поэтому подолгу лежать или стоять в «березке» после интимной близости никакого смысла не имеет.

How to conceive a child

How many live sperm

Many people think that a sperm can only fertilize an egg within a few hours. In fact, this is not the case: the minimum life span of a healthy male germ cell is 24 hours, and some spermatozoa can survive for more than a week! The difference in the life span of spermatozoa is not accidental; they are divided into two types - X and Y, on which the sex of the unborn child depends. Spermatozoa with a "charge" Y (contain the sex chromosome Y) at conception determine the male sex of the embryo, and those containing the X chromosome lay the formation of the female sex. It is important to note that the spermatozoa of these groups differ not only in terms of genetic factors that later determine the sex of the embryo, but also in terms of physical properties. Long-term studies in the field of embryology and genetics have shown that these types of spermatozoa differ in size, shape, movement speed and resistance to adverse environmental factors.

Future boys - spermatozoa Y - differ in small sizes and are equipped with a longer "tail", allowing to develop a significant speed of movement. Thus, the spermatozoa of group Y are very mobile and active, which under other favorable conditions gives them significant advantages for fertilization. However, spermatozoa with a charge Y also have disadvantages - they are not resistant to aggressive environmental conditions (high and low acidity, temperature changes). Another disadvantage of "sperm-boys" is low life expectancy. Even after contact immediately after ejaculation in the most favorable environment, Y-spermatozoa live on average no more than 24 hours. In contrast, the spermatozoa of group X, larger and, therefore, less mobile, much better adapt to external unfavorable conditions and retain the ability to fertilize at times up to 1-1.5 weeks! In medical studies, even cases of "conservation" of spermatozoa X in the vaginal vaults for the period of menstruation and subsequent conception at the beginning of the next menstrual cycle are even described. By the way, this is one of the reasons explaining the possibility of conception during menstruation - X-spermatozoa can just wait for ovulation! Therefore, the opinion that the sperm cell is determined by several hours is absolutely unreasonable. Unlike an ovum, whose life span after ovulation on average lasts no more than 24 hours.

Fertilization of the egg

Fertilize the egg могут несколько сперматозоидов. Согласно этой версии, probability of conception похожа на соискание гранта на конкурсной основе. Отчасти это соответствует действительности, так как путь сперматозоидов до яйцеклетки состоит из сплошных испытаний и препятствий (кислая среда влагалища, вязкий секрет в канале шейки матки, наконец, две маточные трубы, лишь в одной из которых находится созревшая яйцеклетка). В этом смысле действительно можно считать, что будущий участник оплодотворения выявляется в процессе конкурса на выживание, в котором, естественно, побеждает сильнейший. Однако собственно в процессе оплодотворения всегда участвует лишь один сперматозоид – даже если в процессе отбора к яйцеклетке двигалось одновременно несколько мужских половых клеток.

The shell of the sperm head contains a special substance - an enzyme that is able to dissolve the shell of the egg. As soon as one of the spermatozoa reaches the target and touches the egg, its shell dissolves at the point of contact; this effect lasts a fraction of a second, during which the spermatozoon appears inside the egg, after which it again becomes impenetrable, and the remaining spermatozoa - "competitors" remain with nothing. Immediately after the connection of the spermatozoon and the egg, the fusion of their nuclei takes place and the exchange of genetic information is the laying of a new DNA for the unborn child. Even in the case of multiple pregnancies, only one sperm fertilizes one ovum.

Odnoyaytsevye twins are obtained as a result of dividing the already fertilized egg into two equal halves - this is due to a genetic malfunction and can be inherited; such twins are always of the same sex and are similar as two drops of water. Another variant of multiple pregnancies is fraternal twins - it is formed as a result of poliovulation (simultaneous maturation of several eggs at once or in different ovaries); here the reason is more often in hormonal imbalance. The raznoyaytsevye twins can be of different sexes; they are very similar or completely unlike each other, just like children from the same family who were born at different times. However, in this case, there is only one spermatozoon per ovule.

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