I've been using opks since Saturday and it's now Friday and I keep getting positives (3/15/14-3/21/14). The lines don't seem to be fading or anything of that sort. I was supposed to start my period around Wednesday(3/19) but I didn't. Since I've gotten positive opks for a week I don't know where To start counting as 1dpo. I think I've ovulated late and my period won't come till next week?...I've experienced some cramping mainly on my left side bellow my ovary, also some stomach cramping...I've taken a few pregnancy tests from the dollar store and have all been negative. Maybe it's too soon? Or maybe I'm not pregnant at all? :( the picture I uploaded is from today 3/21 just to show how dark it's been, hasn't changed since Saturday.