Polycystic Ovary Syndrome (PCOS) Sympto-thermal Method Chart People with PCOS typically experience very long cycles and erratic temperatures. This individual also experienced long phases of cervical fluid (cervical mucus) and several false peaks – or peak days that do not end in ovulation – which is common for those with PCOS. A noticeable basal body temperature spike indicating ovulation was also not present. Using the sympto-thermal method for pregnancy prevention in this case is beyond the scope of the information that we provide at Groove.Learn how to use the sympto-thermal method of fertility awareness to predict upcoming periods, prevent pregnancy, or maximize your chances of getting pregnant