“Differences Between the Billings Ovulation Method and Other Methods of Natural Family Planning” has been added to your cart. View cart
Billings Method Charts – English & Spanish – (Sold only in sets of 5)
$5.00
A paper option for keeping your daily record of observations, complete with instructions and review of the 4 simple rules.
Billings Method Charts are only available in set of 5
Set of 5 Non-Members $5.00; Members $3.75
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