Onestep opk vs pregmate.

What is the true positive? What would you do in my situation ttc just over 8 months when I use onestep compared to pregmate you can clearly see the difference. I pretty much gave up on opks cos how onestep is today is how opks have been throughout my ttc journey then I hear good reviews about pregmate thought no harm in trying

I guess my question is should i ditch onestep & wondfo & just carry on with pregmate from now on? I really can't believe how much of a different these two opks are. I also think i ov early in cd like cd6 or before when still on period if i get a very strong positive should I carry on opks this month just cos so early in cycle not sure if possible to ov on period or like two days after period stopped