The Billings Ovulation Method® is a natural method of fertility management. It teaches you to recognise your body's natural signal of fertility.
With the Billings Ovulation Method® you'll learn to understand the signs of fertility and to recognise your Peak day, which is the most fertile day in your cycle.
Reliable, harmless, immediately reversible, and inexpensive. The Billings Ovulation Method® of preventing pregnancy ticks all the boxes.