Select this program to learn the Billings Ovulation Method, its rules, and how-tos, for the first time. If you are a previous user who needs a refresher, please select "Billings Ovulation Course: Refresher." The fees for this course include an initial 1.5 hour meeting, a follow-up 1 hour meeting, additional follow-up sessions as needed (limit of 3). Includes digital and paper charting materials.