Learning when you have conceived is absolutely vital. That's why you need a pregnancy test that is going to be reliable & one that can tell you with near absolute certainty if you have conceived or not. The Predictor Pregnancy Test will give you a clear indication up to 5 days before your period. With a 99% accuracy that is based on laboratory testing, this really is the ultimate in home pregnancy tests. Why settle for anything less when it comes to life defining moments?