U.S. National Library of Medicine
Natural Family Planning Methods
A class of natural contraceptive methods in which SEXUAL ABSTINENCE is practiced a few days before and after the estimated day of ovulation, during the fertile phase. Methods for determining the fertile period or OVULATION DETECTION are based on various physiological indicators, such as circulating hormones, changes in cervical mucus (CERVIX MUCUS), and the basal body temperature.
The numerical value of natural family planning methods in Chaldean Numerology is: 4
The numerical value of natural family planning methods in Pythagorean Numerology is: 9
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"natural family planning methods." Definitions.net. STANDS4 LLC, 2017. Web. 23 Jun 2017. <http://www.definitions.net/definition/natural family planning methods>.