The trendline and daily readings line can be thought of as partners to help you see your overall trend in readings. Users will sometimes put too much focus on day-to-day fluctuations but kegg’s intelligent algorithm does the work for you by assessing your readings and cycle trends to determine the best fertile window predictions. The trend line will help to better see the overall trends of the fluctuating day-to-day readings.
In this example, we see there is a one-day rise in the middle of this user’s fertile window. The trendline helps to see that the trend of readings is still lower than the readings before and after the fertile window.