For those of you who practice the sympto-thermal method, I’m trying to set the date at which phase 1 ends and phase 2 begins, and I’m using the Doering rule - the earliest day of thermal shift, minus 7. The Doering rule asks for 6 cycles charted, but I am right now charting my sixth cycle.
Do you think it’s OK to set the end of Phase 1 according to that rule, even though I have only 5 (and not six) cycles fully charted? Do you think that’d decrease the reliability of the method much? My wife’s cycles are fairly consistent in their patterns, up to this point.
Any help appreciated!