Okay so I've never done OPK's before, and now I am in my fertile week so I decided to try them out. I used my afternoon urine that I had held for about four hours. This is positive right? Or pretty close to it? I had right sided pelvic pressure yesterday and today I have pressure in my pelvic area. Well I put the positive test into my Ovia app and it changed my fertile days back three days. We did have sex twice in the switched days but we didn't last night because we were going to start every other day. Am I still okay, or did I miss the window. Now I remember why I didn't want to do OPK's! It makes you feel like a crazy person and this is only day one of testing!