‼️‼️‼️‼️Ovulation Strips! Help Me‼️‼️‼️‼️

Today i bought ovulation strips. I don’t anything about them! I’m used to the digital ovulation test. So I was wondering is it only positive when your on your ovulation day or can it be positive on a fertil day??? If I can be positive on a fertil day how do I know when it I an ovulation day with strips??? Today I used “take a picture of you ovulation strip to get the results” who many of you have used that part of this app and how accurate is it??? I took the test today and it says I’m positive! But what does it mean by positive? Ya know what I mean.

Please help me!