الفهرس 
Introduction
Calender or Calculations Method (Ogino-Knaus )Only 14 pages are availabe for public view
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Abstract
The safe period des:hEnates that method of fertility regulation based on periodic abstinence. To identify the individuals proper fertile period, several methods be used singly or in combination. It includes ,calender, temperature ,symptothermal, and cervical methods. One of the earliest methods was knwon as calendar was based upon the observation that there is a constant relationship between the day of ovulation and the begining of the succeeding menstrual period. After dentifying a woman’s longest and shcn test cycles, mathematical calculations were carried out to determine days :.of pot ential fertility. While this approach worked r ee 9nably well for women with regular cycles, those with grossly irregular cycles had sharp limitations on their activity. Another and a more effective method was temperarhythm, it was based upon the observation that the sal body temperature rises at the time of ovulation • exual intercourse is permitted only during the postouiatory phase. In actual practice, these two techbiues are. frequently used together toincrease acceptability accuracy. The major drawback of the temperature is that it detovulation after it had happened. So free intercourse con be practiced two daYs after the rise until menstruation’ Once the menstruation flOW stopS, the woman is in the preovulatOry phase in which free interCourse iS prohibited next temperature rise. The basal body temperature is UnsatisfactorY in anovulatory cycles in which the temperature will not ris e and free intercourse will be delayed unnccessariy as the wo~an cannot be certain whether failure of the. temperature to rise is due to nnovulation or due to delayed ovulation. When using the ovulation ~ethod are taught to be of the sensations of ”wetness” and drynesSand to fer entiat e b etwe en feelings of” st ic kine s s and lubrication It haS not yet been fullY determined whether the variation in ucorrhea is noticeable in suffi- icient numbers of women to provide ade~uate personal guid¬iance for fertility control, and whether most women can be . ~raincd to interpret their patternS correctlY • Initial ’,evidence suggests, however that with proper instruction majority of women can. recognize and interpI’et their mucorrhea patterns ’