Ovulation

Ovulation is a sign of a woman's fertility and therefore her ability to conceive. During ovulation an egg or ovum is released from the ovary into the fallopian tube. Usually one egg is released per cycle but occasionally two eggs are released. If you have a 28-day cycle you probably ovulate between the 11th and the 16th day from the 1st day of your period. Of course, not every woman is the same, but ovulation usually occurs 11 to 16 days before your period is due.

During ovulation a woman is most fertile and can become pregnant, however this can only happen when her egg is alive. The egg lives for less than 24 hours, if it is not fertilized, however sperm can survive within the woman's body for about 3-5 days before ovulation. The sperm can then fertilize the egg after ovulation.

The best way to predict ovulation is to monitor changes in vaginal discharge. For several days before ovulation a woman's body produces mucus from the cervix (the opening of the uterus), which is clear, slippery and stretchy. In the course of everyday activities you may be aware of sensations indicating the presence of this mucus. Once ovulation has occurred there is a noticeable change, as the mucus becomes thick and sticky. It is at this point (menstruation) that fertilization can no longer occur.

A woman’s fertility ceases at menopause (when menstruation stops).

   Visit the World Organisation Ovulation Method Billings website