[Isabelle]

I expect a 30 day cycle, because it takes two days from stopping PM to ovulation, and the exactly 14 days to the start of the period. Make sure that from day 11 to day 14, you follow a nice downward slope as in the graph. It's the decrease of estrogens that triggers ovulation.

Nobody knows yet how to decrease PM. Is steeper better? Is all the way to zero necessary? There are enough women experimenting with this to find out.