The in vitro ejaculation contraceptive method

means that when a couple is having sex, when the man is about to reach orgasm and is about to ejaculate, he interrupts sexual intercourse, quickly withdraws his penis, and discharges the semen outside the woman's vagina. for the purpose of contraception. This is an ancient contraceptive method. In the past, when there was a lack of contraceptives, many people used this method to prevent pregnancy.

Although the in vitro ejaculation contraceptive method is simple, it is unreliable and has a high failure rate. The reason for the failure was that a small amount of semen had been ejected into the vagina before the man pulled his penis out of the vagina. Because ejaculation and ejaculation are a continuous action, and the time between the two is very short, most men cannot accurately grasp the timing, so that when they are about to reach orgasm, they cannot withdraw their penis from the vagina in time, causing the initial ejaculation to occur. Semen is discharged into a woman's vagina, and this part of the semen contains the largest number of sperm, so it can easily lead to pregnancy. This is the main reason for contraceptive failure with in vitro ejaculation. Secondly, men often have a small amount of sperm entering the vagina before ejaculation occurs. This is the sperm accumulated in the vas deferens. During sexual excitement, as the vas deferens contracts, it is first discharged into the urethra, and then overflows into the vagina along with urethral secretions.

Cleaning the vagina

Cleaning the vagina means that after sexual intercourse, women immediately wash the vagina with water or other liquids to flush away the semen in the body and avoid pregnancy. This method is not reliable because the scope of washing is only the vagina, but many sperm may have reached the cervix and uterus before washing.

In addition, it is very dangerous to use disinfectants, such as Dettol, etc. to wash the vagina, because if the concentration is not properly formulated, it may cause burns or inflammation.

Safe period method

The so-called safe period contraception refers to calculating a period of infertility based on the female’s ovulation period and the survival time of sperm and eggs in the female reproductive tract, so the best choice for sexual intercourse It is carried out during this period to achieve contraceptive purposes. Generally speaking, eggs can survive for 1-2 days after ovulation, and sperm can survive for 2-3 days in the female reproductive tract. Therefore, it is possible to get pregnant by having sex 2-3 days before ovulation and 1-2 days after ovulation. This period is called the fertile period. Ovarian ovulation usually occurs within 2 days before and after the 14th day of menstruation, so the safe period is approximately within 10 days after menstruation, and from the 20th day after menstruation to the next menstrual period. The closer to the menstrual period, the greater the possibility of contraception.

However, this calculation method is often unreliable, because the time of a woman’s ovulation is affected by factors such as the external environment, climate, personal mood, and health status, resulting in delayed or advanced ovulation, and Extra ovulation may also occur. In addition, the longest survival time of sperm and eggs in the female reproductive tract cannot be determined conclusively. Therefore, the safe period cannot be accurately calculated, so contraception during the safe period is not safe.

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