The table is a calculation that is based on the days of the menstrual cycle to know when the woman's fertile period is, and therefore, it can help the woman to know when she cannot have sex, because she is at risk of becoming pregnant.
However, as a contraceptive method it is not very effective and there may be flaws, the woman should not rely only on the tablet, but associate another contraceptive method, such as condoms, for example, to increase protection and prevent unwanted pregnancy.
What days cannot be related
Those who are not looking to get pregnant, cannot have intercourse during their fertile period, which is between the 11th and 17th days, from the first day of the menstrual cycle, in a cycle of 28 days. As the woman may have a more irregular cycle, these days may vary from one month to the next, and that is why the tablet should not be used as an exclusive method to prevent pregnancy.
To calculate the days of the fertile period in case of regular menstrual cycle, what you need to know:
- What is the interval between 4 menstrual cycles, to count how many days your menstruation takes to descend; If you find that the interval is not the same always, you should find an average of days; After that, you must divide this number by 2 to find exactly the middle of the cycle; the day of the middle of the cycle is the most fertile day of the month; and the fertile period is the 3 days before and the 3 days after that day.
This video explains the step by step to calculate the fertile days in case of irregular menstruation:
Best ways to avoid pregnancy
The best contraceptives to prevent unwanted pregnancies include the contraceptive pill, implant, condom, IUD, vaginal ring, diaphragm, and tube-binding surgery or vasectomy. When these methods are used correctly, the chances of getting pregnant are less than 98%.
How the table can help prevent pregnancy
Those who really want not to get pregnant can use the table, but always using other methods together, because the protection is greater. In addition to the tabel, the woman can use a condom, the spermicide, and can insert her fingers into the vagina to see if her own lubrication is transparent and elastic, like egg white.
