Basal Body Temperature
Temperature of a body at full rest; basal refers to baseline. Basal Body Temperature (BBT) measurements are often used to chart and track women's fertility, as temperature fluctuations generally follow the ovulatory cycle.
For purposes of trying to conceive, it is recommended that women take their temperature immediately upon waking and before they rise or ingest anything. Though not absolutely necessary, a special BBT thermometer provides the most accurate reading.
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