My girlfriend s menstrual period on the 27th help me calculate the safe period of 20

Sending you a link to query the query is very accurate.

Does the monthly period come on time? If it is not accurate, it cannot be calculated.

The 10th to the 15th of the next month is a dangerous period, and the rest of the time is safe.

Theoretically, it's the first seven and the last eight, but my theory is the first three and the last four.

You try it, I've tried it, no problem

14 days before menstruation is the ovulation period, 5 days before and after ovulation is easy to get pregnant, the safe period is 7 days before menstruation and 8 days after menstruation, but not 100%, people with menstruation are not accurate, you can measure the body temperature, the body temperature during ovulation is slightly increased.

Menstruation on the 26th, then the 6th-16th of the next month is the woman's ovulation period, that is, the dangerous period, and the rest of the time is her menstrual period and safe period. The safe period is the days after menstruation and the days before it comes, and the middle period is the ovulation period, for example, a woman menstruates on the 5th, then the 15th-25th of this month is her ovulation period, that is, the dangerous period, in addition to her menstrual period and safe period. This woman's period is safe until the 15th after menstruation, the 15th-25th is the ovulation period, that is, the dangerous period, and the 25th until the next menstrual period is also the safe period, do you understand?

If you don't understand, you can continue to ask me.

The first 7 days and the last 8 days can be counted as a safe period. The so-called first 7 is counted from the day before the day of menstruation (for insurance purposes), and the last 8 is after the day of menstruation, and the chance of pregnancy in these 15 days is relatively small, so it is called the safe period. The closer you are to menstruation, the safer it is to those days.

Of course, it is not recommended to have a couple life during menstruation.

7 days after your period is clean and 7 days before your next menstrual period. There is no absolute safe period.

Within two weeks after menstruation and one week before menstruation.

The first seven days of menstruation and the last eight days of menstruation are safe periods! Memorize it! I wish you all happiness!

To take into account the maximum possible range, on the 27th, the ovulation period is the 13th (the ovulation period is the first two weeks of the menstrual period), the first 3 and the last 4 of the 13th are the 10th to the 17th, the 3rd is the 19th ovulation period, and the first 3 and the last 4 are. From the 16th to the 23rd, so if your period is stable between the 27th and the 3rd, your danger period is from the 10th to the 23rd, and the rest is safe....Good luck tonight....

It's a dangerous period!! It's dangerous!! Go and buy an ovulation test strip for 1 dollar, test it, you should be about to ovulate.

The 8th is definitely not a safe period, it is already close to the day of ovulation. It's dangerous.

The cycle is 28 days of menstruation.

One week in the middle of each cycle.

It stands to reason that yes, but some people are different, and it is better to take some measures.

There is no absolute safe period, but it is unlikely that you will get pregnant this time.