1. She can improve detection of ovulation by recording her basal body temperature . 2. Fig . 2 Example of a basal body temperature chart. 3. A woman's basal body temperature rises sharply after ovulation, as estrogen production decreases and progesterone increases. 4. Tracking basal body temperatures is a more accurate method of estimating gestational age than tracking menstrual periods. 5. Basal body temperature is the lowest temperature attained by the body during rest ( usually during sleep ).6. When she ovulates, her basal body temperature rises about one degree and remains elevated until her next period. 7. Computerized devices that interpret basal body temperatures , urinary test results, or changes in saliva are called fertility monitors. 8. Females near ovulation experience changes in the cervix, in mucus produced by the cervix, and in their basal body temperature . 9. The action of progesterone increases basal body temperature by one-quarter to one-half degree Celsius ( one-half to one degree Fahrenheit ). 10. Fertility awareness methods are used to discern when these changes occur by tracking changes in cervical mucus or basal body temperature .
