The ovulation method makes women aware of certain changes in their cervical mucus. These modifications help to distinguish the beginning and end of the cycle's fertile period and indicate the time of ...
Delangue AF, 1993Soins. Gynecologie, Obstetrique, Puericulture, Pediatrie
The Billings method, or cervical mucus method, is a natural family planning method developed during the 1970s by the Australian physicians John and Evelyn Billings. The method requires periodic abstin...
Natural family planning (NFP) is based on the knowledge *largely nonexistent) of a women as to whether she is in her fertile period or not. In contrast to the calendar method, the Billings method cons...