The key to natural family planning is the ability to correctly observe and interpret the signs of fertility.
Secretions are compared to shea-butter and the juice of a vegetable (lady-fingers), the latter being similar to the stretchy-clear fertile mucus.
Training sessions take place in an environment where the beneficiaries feel at ease: at home or under the shadow of a tree.
Individual counselling during 4 menstrual cycles is important to refine self-observation skills.