عشرون يوما تقريبا لاتحمل المرأة فيها .. أطفال تحت الطلب ومنع الحمل

Approximately twenty days during which the woman does not become pregnant

“Since the life of both the egg and the sperm is short from the time they leave their primary environment, the time of monthly fertilization, that is, the time in which pregnancy occurs, is determined.”

We learned that the female is capable of fertilization and is ready to become pregnant within a specific period of time depending on the formation and shedding of the egg, and all the days that precede or follow its shedding are infertile days. A female with a regular menstrual cycle is at risk of pregnancy from the eleventh day to the seventeenth day from the start of the menstrual cycle. She is sterile and does not produce offspring during the first ten days of the menstrual cycle and the days that follow the seventeenth day. Her infertility is natural physiological infertility. Knauss specifies the day of the egg’s release as between the thirteenth and fifteenth days of the menstrual cycle. He estimates the life of the egg at three hours, while he estimates the life of the sperm at three days. According to this estimate, the duration of fertilization, according to his opinion, does not exceed three days, to which he adds two days for reservation and precaution! The fertilization time is approximately five days, which can be determined from the eleventh day of the menstrual cycle to the fifteenth day of it.

As for Dr. Ogino, he says that the life of sperm may extend in some cases to more than three days, so he advises prolonging the fertilization time. He also advises that the end of the menstrual cycle should be considered as a principle of calculation. He says that the fertile time begins from the nineteenth day that precedes menstruation and extends until the second day. “It is noted that the doctors Eugenio and Knauss agree that the eleven days that precede menstruation are naturally infertile days.”

Each of them cited numerous observations that support his theory, which there is no room to mention in this section. Knauss stated that he had never observed any woman with a regular monthly menstrual cycle consisting of 28 days who became pregnant as a result of comparisons that took place after or before the time of fertilization that he determined, despite his many investigations in his tests. Knaus gives many examples of the sexual customs of the extremist Jews, which forbid sexual comparisons during the days of menstruation, and in the twenty-four hours that follow them and during the seven days that precede them! .. This religious belief gives us an explanation for the abundance of offspring among these people because it brought about the days of comparison with the fertile days and forbade them during the barren days.

In short, the duration of fertilization can be determined by the following days: “The day on which the egg is released, in addition to the three days that precede it, for fear of the presence of waiting sperm that have already entered and emerged inside the egg to avoid surprises and everything that was not taken into account... which may result from a late release of the egg.” The total number of fertile days is seven at most... and they are limited to the tenth day of the start of the menstrual cycle, and the eighteenth day of it.
In order for the method (Ogino and Knauss) to be correct and followed by all women, it is necessary to take into account women whose menstrual period is disturbed, whether it is longer or shorter than twenty-eight days. Those who record only twenty-five days for each monthly menstrual cycle constitute ten percent of women, while there are 15 percent of women have a long menstrual cycle that exceeds thirty-four days. This warning can be avoided if the woman is able to monitor her cycle and record her menstrual days.

If her cycle was regular, it would be easy for her to determine the date of her fertile days, despite the length or shortness of her cycle, by a simple modification made by Eugenio himself, who said:
With the corpus luteum, the date of release of the egg and the dates of its progress and fate are closely and fundamentally linked, and the period of influence of this body is fixed and does not change, which is fourteen days. Among them there are many physiological and psychological factors that may delay the maturation of the egg, such as fear, conflict, nervous disorders, and anger, thus prolonging or shortening the period that follows menstruation. .
Ogino's theory differs from Knauss's theory at this point in the calculation.

Developments that take place in a 28-day monthly cycle

Progressive maturation of the egg follicle
1- Scabs spread and develop.
2. A mature pod getting ready to explode

Between days 13-16 of the cycle, ovulation occurs, and the site of fertilization is then available

1 - The egg is released and rolls toward the uterus
2- If it encounters an upward sperm
3- The egg is fertilized and clings to the wall of the uterus

1 - After the eggs burst from the follicle, the corpus luteum begins to grow, creating a scar in its place
2- While another pod matures
3- Ovulation occurs in the next menstrual cycle

If fertilization does not take place, the uterine blood vessels die and bleeding occurs to expel the invalid egg. The blood day here is considered the beginning of the next menstrual cycle.