Triphasic BBT?
Triphasic temperatures occur when you have a second level of high temperatures during the Luteal Phase. Most women associate the Triphasic BBT with a sign of pregnancy, but this is not always the case. the Triphasic temp is mainly associated with high levels of Progesterone hormones. With high progesterone hormones you can either be pregnant or not, so don’t take Triphasic temps as a definitive sign of Pregnancy, unless you have more than 18 days of high temperatures.