How to calculate natural contraception

Do you know how to calculate natural contraception? In daily life, there may be such a situation: when you want to have further sex with your lover, you find that you don’t have a condom, but you need contraception. What can you do at this time? Scientists have invented several magical methods to effectively prevent pregnancy. Today I will give you a detailed introduction on how to effectively prevent pregnancy when no contraceptive measures are taken.

1. Calculate the safe period by calculation.

The safe period is relative to the dangerous period. The time outside the dangerous period and menstrual period is called the safe period. Ovulation period: The ovulation period is generally the 14th day after a woman's next menstrual period. The four days before and five days after this day, a total of ten days, are the ovulation period.

Menstrual period: A woman's menstrual period is calculated from the beginning of menstruation. Generally, a woman's menstrual period is 4 to 5 days.

Safe period: The general physiological cycle of women is about 28 days. Excluding the ovulation period (also called the dangerous period) and the 15 days of menstruation, there are still 13 days of safe period. Generally speaking, the week before menstruation and the week after menstruation are women's safe period.

2. Calculate using the safe period calculator

You can use Baidu's safe period calculator to calculate the safe period, and women can choose the time of their menstruation:

Step 1: For example, select 2011, select November, and select the 8th.

Step 2: Then in the upper right corner, set the shortest menstrual cycle, for example, the shortest cycle is 28 days.

Step 3: The calculator will give you the correct result based on the value you input.

Green means you are in the safe period, yellow means you are in the menstrual period, and red means you are in the dangerous period, which is the ovulation period.

The above two calculation methods are very convenient. You can calculate your safe period using the above two methods. However, the success rate of natural contraception is not particularly high.

Natural contraception refers to safe period contraception, which achieves the contraceptive effect by calculating the safe period of ovulation. The advantages of natural contraception are that it is economical and has no effect on fertility.