Identify the wrong concept of contraception and master the correct methods of contraception

Unintended pregnancy always brings trouble and trouble to men and women, so contraception in sex is a key issue. There are many contraceptive methods that modern people can choose, so how do we choose the right scientific method of contraception? How much do you know about the wrong methods of contraception?

1. It is impossible for a girl to get pregnant for the first time.

Wrong! Do you think you're trying for free?! Any sex can lead to pregnancy, and there is no practice of "free tasting".

2. It is impossible for a woman to get pregnant during her menstrual period.

Wrong! Menstruation does not mean that eggs will not appear, as long as sperm meet eggs, want to break them, the difficulty coefficient is super high.

3. After repeated ejaculation, the sperm count of a man will decrease to such an extent that it will not lead to pregnancy.

Wrong! Making sperm is the most primitive instinct of a man. The number of sperm is not distributed by day. Even if he ejaculates 10 times a day and gives it to you for the 11th time, you may still get pregnant.

4. If a woman jumps up and down afterwards, pregnancy can be avoided.

Wrong! Even if you jump up and down for a "sexual well-being movement" (who can do that? ), or a 360-degree jump after the event, you are also likely to get pregnant. No matter what position you are in, the sperm will reach the entrance of the uterus 90 seconds after ejaculation. are you faster than it?

5. Women taking a hot bath before "sexual happiness exercise" can reduce the possibility of pregnancy.

Wrong! Bathing has nothing to do with contraception unless you finish your sex life alone.

6. Women get pregnant only when they reach the best part.

Wrong! There are millions of pregnant women in the world, but it is equally incalculable for those of them who have not experienced the best part of sex. Pregnancy is fertility, and unless you are diagnosed as infertile, you may get pregnant regardless of the best part or not.

7. Swallow semen may be pregnant

Wrong! As the saying goes, different ways do not conspire with each other. What you eat in your mouth enters your stomach and intestines, not your uterus, so if you eat, you can eat as much as you want and you won't get pregnant.

8. Incomplete male insertion will not lead to female pregnancy.

Wrong! Sperm are more tenacious than you can imagine. Even if you are artificially lazy, the sperm will still travel a long way to find the egg kick ass , take root and sprout.

9. Rinse with water, soap or cola and the liquid you have heard of after sexual exercise to avoid pregnancy

Wrong! Do you think you're a beer bottle? Brushes can still hold things. If you torture yourself like this, you can only cause your own infection, contraception? No way!

10. After the "sexual well-being exercise", women will not get pregnant if they urinate immediately.

Wrong! There are many ways in the human body, urethra and vagina, but that is not the same way!

Five correct scientific methods of contraception

The so-called principle of contraception is to use scientific methods to prevent and destroy some links in the normal pregnancy process, in order to avoid pregnancy and prevent childbearing. At present, there are many contraceptive methods, which can be summarized into the following five methods according to their contraceptive principles:

1. Inhibition of ovarian ovulation

There are female short-acting and long-acting contraceptive and subcutaneous implanted contraceptives which can inhibit ovarian ovulation. The development and maturation of oocytes are affected by the hypothalamus and pituitary. This kind of contraceptive can inhibit the function of hypothalamus and pituitary to prevent egg development, thus achieving the purpose of contraception. In addition, women in lactation also have the role of inhibiting ovarian ovulation, so lactation can also be contraceptive.

2. Inhibit the normal development of sperm.

Gossypol extracted from cottonseed can inhibit the normal development of spermatozoa. Long-term use of gossypol can significantly reduce or completely disappear the number of sperm, thus achieving the purpose of infertility. This kind of men's contraceptive has not yet been widely used. In recent years, some physical methods (such as ultrasound, microwave, warm stimulation of testis) have been used to inhibit the spermatogenic function of testis, and some progress has been made.

3. Prevent the sperm from combining with the egg

There are many methods of this kind of contraception, and its purpose is to prevent sperm from combining with eggs in order to achieve the purpose of contraception. For example, condoms and vaginal diaphragm prevent sperm from entering the vagina, or sperm that enter the vagina cannot enter the uterine cavity; contraceptive for external use has a strong spermicidal effect, and putting it into the vagina can kill sperm that have entered the vagina and prevent sperm from entering the uterine cavity.

Male and female sterilization can prevent sperm excretion or prevent sperm from combining with the egg lesbian double dildo , which is a permanent contraceptive measure; in the process of sexual intercourse, external ejaculation or perineal urethral pressure method is used to make semen excreted outside the vagina or retrograde into one's own bladder, so that semen does not enter the vagina.

4. Prevent fertilized eggs from implantation

The uterus is the place where the fetus is conceived. If you try to interfere with the internal environment of the uterus, it is not conducive to the growth and development of the fertilized egg. The placement of a birth control ring in the uterus and various contraceptive visits can change the endometrium and prevent the implantation and development of fertilized eggs.

5. Staggered ovulation period for contraception

Staggered ovulation contraception is contraception in the safe period male chastity , that is, the use of menstrual cycle calculation rose vibrator , basic body temperature measurement and cervical mucus observation to grasp the ovulation period of women and avoid sexual intercourse during ovulation to avoid contraception, so that sperm and eggs miss the opportunity to meet.
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• I am proud to calculate the ovulation period and have safe contraception
• If you are allergic to condoms, you can rinse them with warm water