How to calculate the safety period in the end, be clear!!

The easiest, the first 7 days, the last 8 days.

Let's say the 10th comes.

No. 3 to No. 10.

and after menstruation to the 8th day after menstruation.

But it's best not to step on the 7th day, and that 8th day, after all, people have different systems.

Professionally, ovulation occurs 14 days before menstruation. But there is no 100% in medicine.

There is no absolute safe period, but a relatively safe time is calculated as such. The period from the seventh day before menstruation to the eighth day after menstruation is relatively safe. There is also a saying of "seven before and eight after eight".

The rest of the time is ovulation. The most unsafe is the days or so before menstruation. Because these days are the time for the egg cell to mature.

Of course, this is also calculated by the regular menstrual cycle (28 days), if your menstrual cycle is 30 days, then the 16th or so days before your period is the most dangerous period.

Again, the safe period is only relatively safe, and as long as you have sex, you can get pregnant, so it is very important to take the necessary safety measures.

These are my personal opinions, I hope it will be helpful to you, and I wish you good luck in the end.

Simple algorithm, first seven and last eight, starting from the first day of menstruation.

The exact security period algorithm is as follows:

The first day of the danger period = the minimum period - 19;

Last day of the danger period = maximum period - 7

Other times are safe and no action is required.

Let's assume that the cycle is 27-32 days, and the danger period is the 8-25th day of the cycle. In this way, there are two safe periods, one is the 1st to 7th day of the cycle, and the menstrual period is removed, but there are actually no days. The cycle is the first day of menstruation.

The other segment is days 26-32, a total of 7 days. Specific can be used for a few days, depending on when menstruation comes, there are many changes, generally 0-7 days, regular cycles, there can be 6-7 days of safe period available.

Want to know how the algorithm came about? 19=14 (ovulation on the 14th day before the next menstrual period, 5, 5 days before ovulation is the danger period, and 5 days before the shortest cycle ovulation date is the first day of the danger period.) 7, the longest cycle pushes the time of the next menstrual period, and 7 days forward is the safe period, so the longest cycle -7 = the last day of the danger period.

One of the most critical tricks in the safe period is that it is calculated based on the date, not the date of the current period, but actually the time of the next period. Everyone will be confused, how do you know that the next menstrual period, sometimes a week is normal, doesn't that mean that the safe period can't be calculated? In fact, the time of the next menstrual period is a range from the previous cycle, at least 6 months or more, the longest cycle and the shortest cycle, and the next menstrual period.

Ovulation on the 14th day before the next menstrual period, 5 after 4 danger periods before the ovulation date. It's the most basic thing. Calculating the safe period is not only that, but also the beginning and tail of the next menstrual period, so as to calculate the head and tail of the ovulation day, the head and tail of the ovulation period, and the rest is the safe period.

Many netizens are temporary, to calculate the safety period, at most they can remember the last time, when they came last time, in this way, the calculated safety period is not very accurate. Be sure to develop the habit of writing down the day of your menstrual period on your calendar every time, which is very good for how your life is arranged.

To determine the number of cycle days!

The ovulation period varies according to the number of days in the cycle!

The day of ovulation is fixed, and no matter the length of the cycle, it will ovulate 14 days before the onset of menstruation!

Can't count 14 days after menstruation! A total of 7 days before and after ovulation is ovulation! The rest is a safe period!

Formula; The number of days in the cycle minus 14, and the remaining days plus the menstrual day are ovulation days!

The first seven and the last eight.

The first 8 days of the menstrual cycle and the last 7 days of the menstrual cycle.

It's concise enough, it's also very detailed, and it's easy to remember.

Hello, generally seven days before menstruation and eight days after menstruation are safe periods for adult women, which is a calculation method used by most people for contraception. In addition to the calendar method, which uses the number of days calculation, there is also the basal body temperature method and the secretion observation method. However, the safe period is not absolutely safe, and sometimes a woman's ovulation will be earlier or later, and the judgment of the safe period will become invalid.

Suggestions: It is recommended that you judge your safe period according to the above methods, and reasonably choose the time of contraception or conception.

Hello, under normal circumstances, the safe period for women with normal menstrual cycles is easier to calculate, and if the menstrual cycle is not normal, the safe period is not very accurate!

The female safe period generally refers to the eight days before menstruation and seven days after the menstrual period is clean, this period belongs to the female physiological safety period, but the safe period is not necessarily 100% safe, it is recommended that it is best to do contraceptive measures at ordinary times.

No matter how it is calculated, it is not as good as the sky, and it is safe to honestly take reliable and effective conventional contraceptive measures.

Don't ask, the safe period will change because of your diet or living habits, more can be a week shorter, the safest is to wear a condom, girls should know how to protect themselves.