started testing with cheap opk tests instead of clear blue

Saturday I started testing with a cheap dollar opk test instead of clear blue because I was tired of seeing the flashing :-) and never getting the solid :-) these are my results what it mean that my Peak fertility was Saturday? I was curious and took the clear blue test anyway and it has a flashing :-) but yesterday I did the same and got a solid :-) for the first time ever but the cheap opk line is lighter than it was the day before I'm so confused can anyone help me figure this out?