When is it difficult to get pregnant during sex?

For some men, they don't like to wear condoms during intercourse. If they want to avoid pregnancy during sex, they can calculate the safe period. Generally speaking, not taking contraceptive measures during the safe period can avoid pregnancy. This involves the calculation of the safe period. Let's understand when it is not easy to get pregnant during sex.

Generally speaking, there are two safe periods in the entire menstrual cycle: one before ovulation and the other after ovulation. A woman ovulates on the 14th day before the next menstrual period. Since the ovulated egg can survive in the body for 2-3 days, we can expand this range to 5 days in advance - 4 days in delay.

It should be noted here that sperm can remain active for 3 days after entering the female body. To be on the safe side, we can extend the ovulation period again, that is, 8 days in advance. That is to say, the 8 days before and 4 days after ovulation, a total of 13 days, are called the "ovulation period".

Safe period calculation formula

Excluding the ovulation period and menstrual period, the remaining days can be called the "safe period". Next, let's take a woman with a 28-day menstrual cycle as an example to make a simple explanation:

With the arrival of menstruation, the woman begins her "menstrual period" of about 5 days on October 1st. According to her menstrual cycle of 28 days, we can calculate that her period will come again on October 29 (October 1 + 28 days), so her ovulation day is October 15 (October 29 - 14 days). According to the above inference, the woman's ovulation period is October 7 to October 19 (October 15 - 8 days, October 15 + 4 days), and the rest of the time is the safe period.

1. Secure computing is very safe

We need to remind you that these safe period calculation methods are just theoretical calculations, but they are not accurate algorithms. Ovulation is also related to women's nutritional absorption, their own emotions, and mental factors, so the safe period is not absolutely safe.

2. Seven in front and eight in back are very accurate

"Seven at the beginning and eight at the end" is a folk saying, and it is only a general rule relative to the female menstrual cycle. However, some people have a very long cycle, some have a very short cycle, and some have no regularity at all, so the calculation method still varies from person to person.

Some women believe that it is safe to have sex during their menstrual period. Indeed, ovulation does not occur during menstruation, and it is difficult to get pregnant even if sperm enters, which is very safe for two people who are taking contraceptive measures. But for women themselves, having sex during menstruation is very dangerous. Because the female reproductive environment during menstruation is much more fragile than usual, once sexual intercourse occurs, foreign bacteria will be brought into the body, causing various gynecological inflammations. Additionally, during intimacy, a woman’s menstrual blood may even flow backwards, which is how endometriosis occurs. So, the menstrual period is not safe at all.