Goodmorning ladies!

I was wondering if any of you have tried the equate OPK and how did they work for you? I ran out of wondfo OPK and didn't have time to reorder more, so I purchased the equate, the wondfo picture below was 3 days ago, so I'm assuming I probably ovukated within 2-3 days after that test since it wasn't completely positive, but the equate has never even hardly showed a hint of a line and I started taking them the day after. Do you think I just missed my surge maybe? Or haven't O'd yet?