Thermal Shift

The rise in basal body temperature that takes place one to two days after ovulation has occurred. The average shift in temperature will be between 0.4 °F and 1 °F. Charting basal body temperature and recognizing the patterns in thermal shifts can help while trying to conceive or preventing pregnancy from occuring by natural means. Broader term......
Found on http://www.pregnology.com/AZ/T/2
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