My cycles are pretty irregular and long. Vary between 30-50 days really. I often don't know when I ovulate but started trying to use opks last month but got norwhere. This month I noticed ewcm 2 days ago and today I got this!! Would there be a good chance if we did BD last night? So day before my surge? I'm not with my OH tonight as he's working on our new house ready to move in but maybe tomorrow we can do more BD in the hopes? Or is that too late if my surge was showing midday today (even darker this evening - this photo)? Sorry for length I'm new to the OPKs!! X