Third day of positive ovulation test

Hi ladies,

I just got my third smiley face of the week using Clearblue digital ovulation tests. I started testing about a week after my period started because I don’t usually ovulate intel cycle day 21. So I had negative tests up until Sunday morning (10/21), checked again yesterday morning (10/22), and got another smiley face, and then I checked again this morning and got ANOTHER smiley face. I know that I’m supposed to stop testing after I get a positive test but I always like to do it the day after to make sure it goes back down. This is the second month I’ve used these tests and the first month i only had one day of smiley faces.

Is this normal? What is going on?