OPK Question

H

Saturday evening I got a +OPK. Since then my tests have gotten even darker to where there’s almost no dye left for the control line. It’s now Tuesday for reference.

My question is, did I ovulate 12-36 hours after the initial + on Saturday, or the darkest +?

Glow changes my date every time I input a test and I know it’s widespread knowledge to stop testing after the first + but we’ve been trying for 10 months and I want to see what my surges look like by testing until the OPK is negative again.

TIA!