The symptothermal method is a natural family planning technique that helps individuals track fertility by observing and recording specific physical signs. This method combines two main indicators: basal body temperature and cervical mucus changes. By monitoring these signs daily, individuals can identify fertile and infertile phases of their menstrual cycle. To use the symptothermal method effectively, one must consistently measure their basal body temperature each morning before getting out of bed and note changes in cervical mucus throughout the cycle. This information helps in understanding ovulation patterns, making it easier to plan for or avoid pregnancy.