Opk difference

Kristina

So I use easy at home opks and I just got the pregmate ones since I’m almost out of the easy at home ones. I decided to test with both to see if there was a difference and the past 4 times or more I’ll use both with the same urine at the same time and the results are always a lot lighter on the pregmate ones. I’m yet to get a positive with either brand this cycle but I’m almost out of the easy at home ones and don’t know if I should trust the pregmate ones? Or am I just crazy and they are the same?