Chance of pregnancy

Kelsey • ICU Nurse 👩‍⚕️ Baby Girl: Miss Maggie “Mermaid” 🧜🏻‍♀️🧜🏻‍♀️ 11/24/19

Just a quick question about this “chance of pregnancy” thing in the app. Does it mean that if you have sex that day there is only a 3% chance you will end up pregnant? Or is it saying that I only have a 3% chance that I am pregnant based on the info I have charted for sex during my fertile week??