LH ovulation tests! Ovulation date?

Chloe • 27 years old- married 5yrs - ttc baby #1!

Ok, i’m a little confused! So, i’ve been <a href="https://play.google.com/store/apps/details?id=com.glow.android">tracking ovulation</a> and I definitely got my peak yesterday, and still today, and I know that means you’ll ovulate in the next 24-48 hrs, but the app keeps pushing my ovulation date to the next day whenever I upload my tests. So should I count my ovulation date as the day I got my first peak or the wait for the tests to go down from the peak?.... I’m lost lol