The first indication of potential fertility will be a change from the Basic Infertile Pattern (BIP). You will feel a change in the sensation that the mucus produces at the vulva. As the days pass you'll notice that the mucus becomes thinner and clearer, and the sensation becomes wet and then slippery. Women use different words to describe this changing, developing pattern, but the mucus will always have a wet, slippery quality because of its chemical structure and composition, even when there is too little to see.

Following menstruation there will often be a number of days when you feel dry and don't see any discharge. This is called the Basic Infertile Pattern (BIP). We know from the work of scientists that the hormone levels are low at this time and the cervix is blocked by a thick plug of mucus which prevents sperm entering the uterus. This means that you're infertile at this time.

We know from extensive scientific research that cervical mucus is essential for fertility. It protects and nourishes the sperm so they retain their fertilising capacity. It forms channels which help the sperm travel through your reproductive system to meet and fertilise the egg. And it acts as a filter, destroying imperfect sperm cells.

Give the gift of knowledge that could save a woman’s life!

Help us make a difference to the future of women’s reproductive health. The money that you donate enables Billings LIFE to create greater awareness about the Billings Ovulation Method® in rural, remote, regional and metro areas across Australia and in many other countries. Your gift also enables us to help women safeguard their reproductive health through health promotion programs and educational services.

You can also donate to WOOMB International to which OMR&RCA Ltd, trading as Billings LIFE, is affiliated. WOOMB International, www.woombinternational.org, continues the work of its founders, Drs John and Evelyn Billings, throughout the world, ensuring that wherever the Billings Ovulation Method® is taught, it is the authentic Method and that only WOOMB International approved teaching and training materials are used.

We provide women and health professionals with evidence-based educational resources enabling them to use the Billings Ovulation Method® as a diagnostic tool to safeguard reproductive health for all stages of a woman's reproductive life.

All donations over $2 are tax deductible. Make a secure online donation today at www.givenow.com.au/billingslife. You can specify whether you are donating for services in Australia or internationally. Alternatively, you can donate by PayPal using the payee address This email address is being protected from spambots. You need JavaScript enabled to view it., or send a donation to 2A/303 Burwood Highway, East Burwood, Victoria, 3151, Australia.

Billings LIFE is internationally recognised as a leader in fertility education and is a registered Health Promotion Charity.