Fertile days calendar

Fertile days calendar

Fertile days calendar it is supposed to establish, when a woman is able to get pregnant. The determination of fertile days can serve two purposes - either as a natural method of preventing pregnancy, or otherwise, as another tool to facilitate fertilization.

Why calendar of fertile days is so important? This is why, that a woman is fertile in the course of her life in just a few days each month, unlike men, who - of course, provided, that they are healthy - they are fertile all their lives, from the moment of reaching sexual maturity. To properly fix – fertile calendar, it is necessary to know about it, how the female reproductive system works. In a woman, the fertile period is determined by the monthly cycle.

Calendar of fertile days and the menstrual cycle

The first day of each menstrual cycle is the first day of bleeding, and all other cycle phases are calculated from there. The first days of menstruation are hormonally quite calm, and in the ovaries, the preparation of the eggs ready for fertilization begins. Egg cells are already produced during fetal life, therefore a woman in her adult life is unable to produce new eggs. The entire egg supply is matured in both ovaries, and at the beginning of the cycle, the body selects these eggs, which are best suited to begin wandering the fallopian tube.

Ultimately, one is selected from this group of maturing follicles, and in rare cases, a few - if fertilization then occurs, the pregnancy will most likely be multiple. The follicle is released from the ovary around the tenth day of the cycle. As it travels, the follicle fills with estradiol, that is, a hormone, which will allow the fertilized egg to establish itself securely in the uterus. The ripe egg is quite big, and approx 12-14 the ovulation phase begins on the day of the cycle.

At this point, the pituitary gland begins to produce the LH hormone, whose task is to break the follicle and release the egg. Some women may notice slight bleeding on these days, known as ovulation bleeding. If it lasts one day and is not plentiful, bleeding is not a signal, that there is something wrong with the woman's body or that the woman's reproductive system is not working properly. This is exactly when the egg begins its way down the fallopian tube, and that's when your period begins, during which a woman has the chance to become pregnant.

Fertile days calendar - cycle length

The life of an egg that is ready for fertilization is very short and usually lasts approx 24 hours, so only one day. However, the chance of fertilization is extended by the life of the sperm, which, after reaching the genitals, women are able to survive approx 3 do 5 days. For this reason, the beginning of the fertile days is set a few days before ovulation begins. About 22 day of the monthly cycle and 10 the day after ovulation begins, the female reproductive system begins to "clear the area" of dead tissue, unless fertilization took place during this time and the embryo was established in the uterus. The end result of the process of removing the unfertilized egg is monthly bleeding, usually starting 28-29 day of the cycle. Uterine lining, who was getting ready to receive an egg during the cycle, begins to flake off and die, and its residues are removed from the woman's body, which results in menstruation. The next monthly cycle also begins at the same time, which will repeat itself quite regularly until the moment, in which a woman goes through the menopause, which means, that the woman would no longer be able to conceive, and her ovaries will stop releasing eggs.

However, each woman goes through the monthly cycles individually, therefore, it is impossible to define one universal pattern for the fertile days calendar, and can only be determined with some approximation, when a given phase of the cycle may take place. Woman, who wants to calculate their own fertile days calendar must first carefully observe their body, in addition, there is never a 100% guarantee, that each subsequent cycle will be the same, like previous cycles. It is especially difficult to identify the fertile and infertile days for women, who have irregular periods, therefore the fertile days calendar is not recommended as a contraceptive method.

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