Bourdillon C, 1982The Central African Journal of Medicine
Frequently, when one mentions natural family planning methods, the response is doubt, bewilderment, ridicule, or scorn. Much of this is due to the fact that many people know only of the rhythm method,...
Billings JJ, 1981International Journal of Fertility
The ovulation method provides a woman with an awareness of her cervical mucus pattern. This enables her to mark the beginning and end of the fertile phase of the cycle as well as the time of maximum f...