Fertility Awareness: Triphasic Curve
Fertility Charting
Obie Editorial Team
A biphasic curve has two phases: It is a curve that rises and stays up after ovulation. The first phase is before ovulation (follicular phase), the second phase is after ovulation (corpus-luteum phase), when temperatures rise because of progesterone.
A triphasic curve has three distinct phases:
The triphasic curve supposedly shows implantation, but there is no sufficient scientific evidence to prove or disprove this. Many typical pregnancy curves are not triphasic, and many women who have triphasic curves turn out not to be pregnant.