billingsMentor is a personal computer application that guides you in observing, recording and interpreting your fertility symptoms.

Version 1

billingsMentor helps you to record your fertility symptoms and to apply and learn the Billings Method.
See The Billings Method, by Dr Evelyn Billings and Dr Ann Westmore, Penguin Books, first published 1980, new edition 2003.

billingsMentor may not give the same advice or interpretations as would be obtained under instruction from an accredited teacher of the Billings Method.
The World Organisation of the Ovulation Method Billings has not approved the use of billingsMentor.