One of the most frequently asked questions - how to calculate the menstrual cycle. There are several important reasons why every month you need to make basic calculations. So, what do you need it?
- For insurance. Each woman angrily note that the critical days tend to surprise the surprise and, therefore, put in an awkward situation. Thoroughly examining her monthly cycle, it is possible to keep the situation under control.
- To increase the chances of pregnancy. By simple arithmetic calculations define the term ovulation. Then, in the most suitable for conception days make sex more intense, so that a pregnancy test showed a positive result for sure!
- To avoid pregnancy. The potentially dangerous days for conception sex is best to avoid or use barrier contraceptive methods - is a fairly accurate natural contraceptive method. But 100% trust this method is still not worth it, because the complex physiology of the processes are not subject to the calculation of fully, and many women ovulation occurs more than once a month.
- For female health control. If we define the period of the menstrual cycle for several months, you can monitor its stability and for how long it lasts. If any suspicious changes need to see a gynecologist for early detection of problems.
Menstrual cycle and the critical days
There are 4 phases:
- Follicular phase.
- ovulation phase.
- Luteal phase.
- Phase desquamation (critical days).
Anterior pituitary share in the brainfollicle stimulating hormone produces under the influence of which the ovaries to produce progesterone and estrogens (number predominates). Recent stimulate the formation and maturation of follicles, among which later determined the dominant follicle. Toward the end of the follicular phase (approximately in the middle of the menstrual cycle) ovulation.
The duration of this period is 3 days. The pituitary gland produces luteinizing hormone, which is getting into the blood, stimulates the production of progesterone. Under the influence of estrogen and progesterone dominant follicle bursts, releasing through the fallopian tubes into the pelvis matured egg. This is ovulation.
During the period luteal phase the female body produces lots of progesterone: substance appears as a result of pituitary luteinizing hormone and produced by the corpus luteum, which is formed in situ ruptured follicle. In the luteal phase endometrium thickens, it becomes more loose and viscous. These changes are necessary to consolidate the fertilized egg. If fertilization has not occurred, after 12 - 16 days to start menstruating.
Menstruation is nothing but rejectionan unfertilized egg and an endometrial layer ready for implantation. This process indicates a failed pregnancy. Some time before menstruation, changes in the woman’s body that are not quite pleasant for her occur. So, on the eve of critical days, frequent mood swings, irritability, fever and blood pressure, painful swelling of the chest are possible. These symptoms gradually decrease and disappear on the first day of your period.
It is important to know
Our website focuses its readers on the following important information:
- Every woman is unique, and all calculations should not be done "by eye", strictly in accordance with their own data;
- calculations used successfully to determinebeneficial or harmful to the days of conception can only only if the menstrual cycle you have a stable! The permissible deviation from the norm is the difference in 1 - 3 days;
- recall that the menstrual cycle - a periodfrom the first day of the month before the first day of the following month. The first day of menstruation occurs when the discharge becomes deep red. Dusky indeterminate color selection for the start of menstruation does not take.
How to calculate the monthly cycle that conception occurred
So, bearing in mind that the first day of the cycle take the first day of menstruation, and the last - the last day before the next menstruation, do simple calculations.
The most fruitful in terms of conception periodThey believe the ovulation phase, which shall enter into force on the 14th - 16th day after onset of menstruation. Outside the ovary mature egg is active and able to fertilize one day. However, to conceive a child can be, even for a few days before the arrival of ovulation, because sperm viability outside the sperm is stored from 2 to 5 days.
To properly calculate the monthly cycle,Read and understand your cycle over the past year (or at least half a year). Determine the longest and shortest cycles. From the values of the shortest necessary to subtract 18 from the value of the longest - 11. For example, your monthly cycle is the longest was 33 days, and a short - 26. We believe: 33 - 11 = 22; 26 - 18 = 8. The gap between the 8 and 22 day cycle - the best time for a possible conception.
How to calculate the monthly cycle, not to get pregnant
It is also necessary to study the characteristicsmenstrual cycle, if you are interested in the question of how to prevent conception. Safe consider the time it comes a day after ovulation: the egg is already dead, and fertilization does not occur. But it is worth remembering that the exact date of the beginning of ovulation by ordinary calculation to determine very difficult, and you can get pregnant, even a week before ovulation. It is better to choose other methods of contraception with a higher degree of efficiency.
is necessary not only to consider whether the menstrual cyclewhen you want to get pregnant or to prevent conception. You can judge the health status of women on the stability and regularity of the menstrual cycle. For example, significant delays menstruation and very painful periods signal the endometriosis, Inflammation of the uterus or ovaries. This means that to have a clear idea about the features of the organism would not hurt any woman.