Does anyone have any books or anything they would recommend to help me fully understand the whole ovulation thing? I was u set the impression that if u pee on an ovulation test and two lines show it means u will ovulate within 24-48hrs but then I heard it depends on how dark the line is. My first two were not planned at all I had them pretty young but now I have been trying since January and I just need assistance in learning more about this crazy female body and how it works.