Just wondered if anyone here had ever tried the Ovacue monitor. I'm thinking about getting it for NFP use, but it is actually for predicting ovulation for achieving pregnancy, not avoiding it. Anyway, it uses your saliva - yes, you read that right- to predict your ovulation. Pretty amazing huh? It sounds like it works pretty well- so if anyone is interested in another non-invasive method that might be more effective than the urine test monitors, check it out. I think their website is ovacue.com. Also, I talked to a salesman there yesterday and he was very helpful.