Multiple positive OPKs

Me

Hi all! I’m a noob here and think I caught my surge but have had positive OPK results multiple times over the past 36 hrs

First is yesterday morning, second is yesterday evening and third is this evening. Is it normal to have multiple positive OPKs over this period?

I’m also just trying to validate if I’m even using he OPKs right - would they be falsely positive in any instance if I was using them incorrectly?

Thanks for your help ladies!!