Simple, inexpensive and reliable!
BBT = Basal Body Temperature
Basal = Base (or lowest temperature of the day that will tell you what "hormone" is dominant)
Therm = Thermometer Temp = Basal Body Temperature
Temp Ranges:
Before Ovulation: 96.0 - 97.6 (Estrogen dominant)
After Ovulation: 97.7 - 98.8 (Progesterone dominant)