Calculate the fertile period of woman

         Fertile period is a period in the female menstrual cycle where there is a mature egg cell is ready to be fertilized, so that when women are having sexual intercourse it is possible to conceive. The menstrual cycle is influenced by female sex hormones are estrogen and progesterone. These hormones cause physiological changes in women's bodies can be seen through several clinical indicators such as: 1. Changes in basal body temperature 2. Changes in cervical mucus secretions (cervical) 3. Changes in the cervix 4. The length of the menstrual cycle (calendar method) 5. Minor indicators of fertility such as abdominal pain and changes in the breast.
          There are several ways to determine your fertile period, ie; a. Fertile period for a regular menstrual cycle formula: Day of the 12th to the 16th counted from the first day of menstruation. For example: my wife's first menstrual period 2 April 2010, and we mix the two up to 2 + 11 + 15. So we mingled on 13-17 April 2010. Another day when want to mix it should be three days, because beyond day-to-12-16 and to the absence of pregnancy. Fertility only day-to-12th to the 16th. This formula is valid for 30 days cycle. For other cycles, can follow the following formula: Ovulation = (Menstruation Cycle - 16 + Date of Last Menstrual First Day) Fertile period = (Period of ovulation - 2) to (Period ovulation + 2) Example: - On the First Day of Last Menstrual = 2 April 2010 - Menstrual Cycle = 30 days - The period of ovulation = (30-16 + 2) = 16 - The fertile = (16-2) to (16 + 2) = 14 April until 18 April b. With the rate increase in body temperature, body temperature usually increases before and after ovulation due to hormonal influence of progesterone. c. By assessing cervical mucus. The hormone estrogen peaks during ovulation and cervical mucus affected. Preceding ovulation cervical mucus is usually a rather thin, and when touched with two fingers forming yarn and colored nodes. d. Ovulation Test Tool. Currently, he also has sold free diapotik or drug store tools to assess the fertile period of fertility tests or ovulation prediction. This test instrument works by measuring levels of LH hormone produced during ovulation. This tool is used like a pregnancy test but of course more expensive.   
      By knowing when your fertile period, can help those of you who are planning to have children and also at the same time as a method of family planning or contraception is still natural to want to postpone pregnancy, no sexual intercourse during fertile