Adding past cycles changed my percentages

Andrea
I just got this app & entered that I'm on day 2 of my current cycle. The app calculated my highest percentage for about 10 days from now, makes sense. 
​Then I added my past cycles & my percentages changed. Now my highest chance is two days from now, way too soon. 
​I don't know why this is showing now & I'm afraid that my numbers are now off.