In NC° Plan Pregnancy, the fertile window is presented in a scale of red colors, where the most fertile day has the darkest shade of red, and the lightest red color indicates 'fertility unlikely.' Non-fertile days are presented in a light green color.
The brown ‘More data needed’ days are days where more data is needed for the algorithm to be able to determine your fertility status. If you get brown days, the best thing you can do is to keep logging fertility data every day!
In the pictures below, you can see the scale of colors in the Today and Calendar views.
There are 2-3 days per cycle during which you have the highest chances of conceiving (around ovulation day), even though the fertile window is six days in total : these are the days that will show as ‘High Fertility’, ‘Very High Fertility’ and ‘Peak Fertility’ in your NC° app.
To increase your chances of conception, the Natural Cycles algorithm can find your ovulation day and the days when you are the most likely to get pregnant by analyzing body temperature and (optional) LH levels.
Natural Cycles gives you the information you need to time intercourse and maximize your chances of conceiving. Our research shows that, on average, it takes three cycles or less to become pregnant using NC° Plan Pregnancy.
Learn more about how NC° Plan pregnancy works here.