The Hormone which forms the basis for 'Basal Body Temperature' as a method of detecting ovulation is :
This Method is based on the fact that after ovulation, progesterone level in the blood increases Progesterones have a Thermogenic effect, increasing the basal metabolic rate and causing the rise of temperature by 0.5degF the luteal phase. Day of 'temperature shift' indicates the time of ovulation.
Estrogen
Progesterone
HCG
Oxytocin
Contraceptives