Australia

Billings method http://www.billingsmentor.org/contact.html
World Organisation of Ovulation Method Billings http://www.woomb.org/forms/all.html
Fertility Care (Dr Amanda Lamont) This email address is being protected from spambots. You need JavaScript enabled to view it.

FAM /sympto-thermal
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Australian Council of Natural Family Planning

http://www.acnfp.com.au/index.php?pageId=general-contact-form

Natural Fertility Australia 

http://naturalfertilityaustralia.org.au/contact-us/