My App is not longer showing my % chance of getting pregnant?

BB
My app is longer showing the % chance of pregnancy, it is just saying how many days till my period rather than flashing between the two! How do I get the % back?!
I'm ovulating at the moment so the % is pretty vital right now but I don't want to delete and re-add the app incase it deletes my cycle history?! 
Glow can you help me please!