The harm of contraceptive: safe period contraception is not necessarily "safe"!

Many young couples have sex at night, but contraception is still needed, but the couple said, no, in the female safety period, safe and refreshing, sound dripping without pressure. However, safe period contraception is not necessarily "safe"!

Women generally have only one egg excreted in each menstrual cycle, which can survive for 1-2 days, and sperm can generally survive for 2-3 days in the female reproductive tract. It has been reported that the time to get pregnancy after single intercourse is from 6 days before ovulation to 3 days after ovulation, most of which occur within 3 days before ovulation. The principle of safe period contraception is to avoid the female ovulation period and make the tadpole's trip a sightseeing trip with no return.

So the crux of the problem is to determine the date of ovulation. Ovulation often occurs about 14 days before the next menstruation. Therefore, the safe period is a concept that only exists in women with regular menstruation (menstrual regularity refers to a cycle of 21-35 days). Irregular menstruation does not ovulate or ovulate sparsely (which is also a common cause of infertility), so there is no concept of safe period. But is it necessary for women with regular menstruation to ovulate so punctually? Women with regular menstruation can basically be considered to ovulate regularly. However, for women who ovulate regularly, ovulation time is also affected by personal mood, stress, health status, external environment and other factors. Female compatriots should have a deep understanding of this, tension before the exam, great work pressure, changes in the living environment in other places will lead to changes in menstruation.

Each has its own safety period.

Safe period contraception is a method that many couples and couples like to use. the advantages are simple, direct and low cost, and the most prominent disadvantage is high risk. Statistics have shown that the effective rate of safe period is about 83%. At first glance, it looks good, but it is still a far cry from the 98% or 99% effective rate of condoms, vaginal diaphragm, birth control ring and so on. No wonder some people say that "the safe period is not safe."

According to reason, the safe period is the day when there are no conditions for fertilization male chastity cages , so it should be safe to have sex during the safe period sexshop , but many people have suffered from the "safe period". The crux of the problem lies in the calculation of the safe period.

Every adult woman has her own menstrual cycle, and no two people are exactly the same, so everyone has their own safe period, whether it is "the first seven or the last eight" or "the first three or the fourth" is not suitable for everyone.

How to improve the success rate of safe period contraception?

For married women who want to have a baby, they have to take advantage of the dangerous period magic wands , that is, the ovulation period, in order to be a successful person. In both cases, they must understand their menstrual cycle in order to get what they want. So ladies, do you know the method of calculating the safety period? Next, the editor will take you to learn about it.

The calculation method of safe period should be based on the menstrual cycle, the so-called menstrual cycle is: the first day of this menstruation is counted as the first day of the cycle until the day before the next menstruation, which is called a menstrual cycle. Generally speaking, it is about 26-35 days.

The menstrual cycle can be divided into two stages:

In the first stage, the first day of menstruation lasts from the first day of menstruation to the day of ovulation. this period is about 12-22 days, depending on each person's physique. I will take the 28-day cycle as an example: menstruation lasts about 3-5 days. On the 7th day, the ptosis will secrete hormones to stimulate the development of the egg, when the egg matures. The pituitary gland begins to secrete estrous hormones to thicken the uterine tissue until ovulation begins on the 14th day of the cycle, and the first stage is over.

In the second stage, everyone's time is roughly the same, that is, from the day of ovulation to the next menstruation, usually two weeks after ovulation, that is, 14 days, is the day of menstruation. During this period, the mature egg will go from the ovary through the fallopian tube to the uterus cock pump , that is, the period of ovulation, which is about 24-48 hours, during which the concentration of estrous hormone will decrease and the luteal hormone will rise. the aim is to make the endometrium thicken continuously so that the fertilized egg can be implanted. If there is sperm entering at this time, a fertilized egg will be formed. That's how pregnancy begins. But if there is no fertilization, the egg will shrink after 1-2 days in the womb, and then in about two weeks, the thickened endometrium will naturally peel off and start the next menstruation, so again and again.
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