I didn't test opks all week, but I was having a lot of ewcm, so I thought on Friday I ovulated and bd that night, just didn't have a chance besides 6 days earlier. I took an opk yesterday just to see since I was still having ewcm. The first one was dark, second one lighter. Just wondering if your opks go completely white after O or still a bit dark. This is my second one, lighter than the first 3 hours prior.