What contraceptive methods, the most healthy? The international arena there is such a term called “natural family planning” that is, natural family planning. According to female reproductive physiology that is characteristic time of intercourse to avoid pregnancy in childbirth, natural to achieve the purpose of contraception. Natural birth control is actually to avoid “dangerous period” to grasp the method of natural family planning is bound to find out about some of the physiological knowledge of pregnancy.

  1, women’s menstrual cycles is bound to understand the

In general, normal women 28 days to once menstruation, ovulation and the menstrual cycle more in the middle, that is between 14 ~ 16 days, but because of people’s health, living environment, mental stimulation is often different Er Shi ovulation in advance, or push later.

The first step: To observe the menstrual cycle

Your menstrual cycles are irregular? The number of days interval between the two periods? This information is the first to grasp. If you can not accurately answer these two questions, menstrual cramps can be used when the records done in the calendar, marking a “first day.” Calculation until the next menstrual cramps (that is, the next one “first day”) between the total number of days. You may need a continuous record of three or four months in order to accurately calculate the length of the menstrual cycle and laws. The average menstrual cycle is 28 days, but in 23 – 35 days are considered normal between. Course cycle, the number of days may vary due to months.

Step two: determine the ovulation period

In a short time of ovulation and that intercourse is the key to conception, ovulation is that when the mature egg from the ovary to the fallopian tubes discharged time. So, you need to do the second thing is to determine ovulation. Ovulation, women are often accompanied by a number of physiological changes and signs. The majority of women in the ovulation period can feel the chest, especially the breast skin is more sensitive; sense of smell and hearing are more acute; some may have mild little abdominal pain (more common side), as well as an increase in mucous Leucorrhea or bloody mucus; sometimes see labia edema; some women may have an enhanced sense of sexual desire and so on. Women often ranked one egg per month, in the 24 hours after ovulation, if fertilization does not encounter the sperm, then the loss of fertility.

For men, the sperm into the vagina, the 5 to 15 minutes, can enter into the cervical crypts, and even into the fallopian tubes, 4 to 6 hour of death, loss of fertility of about 48 hours. This means that, in the woman 48 hours before ovulation and 24 hours after ovulation, it is pregnant “dangerous period” should be avoided.

Natural contraception lies in keeping abreast of ovulation, how to predict ovulation. The current method of many, as the home of self-control methods are the following types:
Peas Mom: depending on cervical mucus predict ovulation

As the follicles mature female can produce more estrogen, when up to a certain extent, that is during ovulation, you can make more cervical mucus gland secretion, about 30 times the usual three, then hail thin mucus transparent, viscous small, was watery and easy to pull into a filament. Length of up to 15 ~ 20 cm. If under a microscope, we can see cervical mucus was Fern leaf-shaped crystals, while the women he could touch the cervix, the cervix can be seen outside the mouth in the ovulation period is carried out, the original hard like cartilage-like texture, soften the cervix, and a large number of clear, and slippery, elastic mucus flow to the vagina, vaginal contraction so that mucus discharge on their own outside the vagina. Apparently, the hail slippery mucus thin, transparent, with the thumb and index finger Nieqi mucus can be pulled into a filamentous, reaching more than 10 cm.

Fortunately, grass reminds pregnancy:

Be careful not to room after semen-induced mistakenly confused with this mucus. The more close to ovulation, mucus becomes more slippery, clear, and water samples. If the increase in vaginal discharge, once discovered, that an increase in cervical mucus, it immediately to avoid intercourse or use condoms and other measures, and pay attention to the changes in mucus has been smaller adhere to the cervical mucus, mucus become thick dry date, about 5 ~ 7 days. The best each month will find an increase in mucus or changes in the date of record in order to explore their laws.

Strong Wind Grass: the amount of basal body temperature

Women’s body temperature with the menstrual cycle may have some changes in menstrual period and the follicular phase body temperature low, while the luteal phase was higher. In the first half of the menstrual period more in 36.8 ℃, and this is the body caused by endocrine progesterone. Predict ovulation would need to draw a good basis for body temperature curve