Different result, same urine sample?

I was running low on OPKs so I ordered some more online (different place I bought my current ones). I was testing earlier with my current ones but decided to also use one of the new ones that arrived his morning. The results are very different. Which one do I trust to be more accurate now?! I'm new to this so very confused how two tests can give such different results from the very same sample! The pink one is from the new batch of tests.