The way menstruation occurs periodically in women is called the menstrual cycle. On average, the following happens: the first day of your period marks the beginning of your cycle.
Then, for thirteen days, an ovum matures in one of your two ovaries (the ovaries alternate every month). At the same time, the lining of the uterus becomes thicker in case a fertilized ovum needs to be lodged there.
On day fourteen the egg is released and enters the fallopian tube, a significant event called ovulation. Now the ovum must travel through the fallopian tube to the uterus, which takes a couple of days. If the ovum is not fertilized during its travel, it disintegrates and leaves the vagina. At this time, the lining of the uterus begins to decompose because, after all, it was not necessary.
A few days later your period starts: the old coating should be discarded so that there is room for a new layer in case the next egg is fertilized. The last day before your period begins is the last day of your cycle.
After the first menstrual time, one or two years may be required for your cycle to be regular. The average cycle lasts 28 days, which means that 28 days pass between the first day of your period and the day before your new phase begins. A girl with a cycle of 28 days is “regular when it occurs every 28 days, although it is common for the duration of the cycle to vary a little from one month to the next.” Many girls have short cycles (21 days) or long cycles (35). Days, or an average amount. The fact that your period is regular (say 26 days) for years does not mean that it cannot change suddenly.
Several factors can influence the duration of your cycle, including nutrition, changes in body weight, stress and travel. Regardless of the length of your menstrual cycle, ovulation almost always happens 14 days before your next period begins.
How to calculate the date of ovulation?
It is easy to calculate the faith of your next ovulation if your cycle is regular and you know how long it lasts. Merely determine when the first day of your next period will be and count 14 days back.
For example, if your last time started in June and your cycle is usually 25 days, then your next period will begin on June 25. If you are counting 14 days back, you arrive on June 11th. That is the date of your ovulation.
If you do not have sex for nine days around this time (four days before and four days later), you will decrease the chance of getting pregnant. Do not eliminate it at all, because you can never be 100 percent sure of the day you will ovulate. Couples who try to avoid pregnancy by taking these dates into account, so they do not have sex have a 20 percent chance of error. The risk is too much, to put it another way, if these calculations are the only protection you use, you can expect to become pregnant within a year.