The description regarding fertile period and “safe period” is available in Ayurveda classics. The first 12 or 16 days of menstrual cycle are considered as fertile period (ritukala) and once this time period is over, the reproductive tract (yoni) gets constricted and do not promote the entry of sperm (shukra) into the uterus. [Su. Sa. Sharira Sthana 3/9] After ovulation, during progesterone dominant phase of menstrual cycle, cervical mucus becomes hostile to the sperms and prevent their entry into the uterus. So, this period can be considered as the safe period for coitus to avoid unwanted pregnancy. | The description regarding fertile period and “safe period” is available in Ayurveda classics. The first 12 or 16 days of menstrual cycle are considered as fertile period (ritukala) and once this time period is over, the reproductive tract (yoni) gets constricted and do not promote the entry of sperm (shukra) into the uterus. [Su. Sa. Sharira Sthana 3/9] After ovulation, during progesterone dominant phase of menstrual cycle, cervical mucus becomes hostile to the sperms and prevent their entry into the uterus. So, this period can be considered as the safe period for coitus to avoid unwanted pregnancy. |