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The Billings Ovulation Method® chart of a 28-year-old woman showed several months of abnormal cycles, with excessive thick and sticky mucus and no obvious changing pattern suggestive of ovulation. In one cycle, she experienced fertile symptoms followed immediately by bleeding, then fertile symptoms again. Her Billings Ovulation Method® tutor referred her to her GP for investigation.

A small amount of blood in your cervical mucus may be harmless, caused by hormone fluctuations, or even the implantation of an embryo if you have conceived. But sometimes it may indicate cervical or uterine polyps, or fibroids. There are also a number of cancers of the reproductive system that can affect your patterns of cervical mucus and menstrual cycle. It's important to discuss with your doctor any spotting or blood in the mucus that is a change from your usual pattern, or changes in your normal menstrual flow.

J.B. Brown D.Sc. Ph.D.

Ovulation - the release of an ovum by the ovary - is the most important event of the fertile cycle; it occurs only once at a moment in time during the cycle, even when more than one ovum is released.

Ovulatory Dysfunction is the absence of ovulation or abnormal ovulation activity. This condition is a major cause of infertility. It is often associated with irregular menstrual cycles and is usually caused by hormonal disorders. Adrenal and ovarian hormone abnormalities are the most frequent cause of ovarian dysfunction, and the most common example of this is Polycystic Ovarian Syndrome (PCOS). It is estimated that 5 to 10 per cent of Australian women have PCOS, but many don't know they have it.