How to calculate the height and the safety

Women's ovulation date General next menses about 14 days ago.

Eggs from the ovaries of the fallopian tube emitted after can survive within 1-2 days to wait for insemination; men's sperm in a woman's reproductive tract can be maintained for 2-3 days of fertilizing capacity

Normal fertile women each month to once a month, from the beginning until the next menses menses day 1, called a menstrual cycle.

Such as contraception, can women each menstrual cycle, ovulatory menstrual and rhythm.

Women's ovulation date General next menses about 14 days ago.

Eggs from the ovaries of the fallopian tube emitted after can survive within 1-2 days to wait for insemination; men's sperm in a woman's reproductive tract can be maintained for 2-3 days of fertilizing capacity, eggs from the days before and after intercourse easy to conceive. Just in case, we will before the ovulation day and 5 days, 4 days, ovulation days with a total of 10 days is called life. Because sexual intercourse easy within the height of their pregnancy, so the height is also known as easy to conceive or danger.

Rhythm is divided into rhythm and before ovulation after ovulation rhythm.

From the day of the menstrual clean to the height of the day before the beginning of the period before the date of ovulation rhythm. From the height of the end of the first day to the next menses last days after ovulation rhythm. After ovulation rhythm than before ovulation rhythm more secure. This is because some women are sometimes affected by environmental change and fluctuate, the ovulation ovulation, this will shorten before rhythm, his own and do not know, so that you ovulate before the rhythm is not safe. Ovarian in a menstrual cycle has row two eggs is very small, i.e. after ovulation to next menses before this period of time generally does not occur the second time ovulation, so after ovulation rhythm is more secure.

Ovarian stimulation, generally do not have a special feeling, even if some women may have lower abdominal pain, backache, breast fullness and emotional changes and other symptoms, but the phenomenon is not unique to the symptoms of ovulation, it cannot be used as a basis for ovulation.

Menstruation and ovulation cyclical changes between the two are closely related, if you have both variations, you can through an indirect approach to determining ovulation date. Determination of ovulation date there are a number of ways, and women can ability to master the methods are: according to the projections of the menstrual cycle, temperature measurement and observation on the basis of cervical mucus secretion, etc.

(Edit: Zheng Yan internships, MD)