The only pregnancytest on the market that gives results in just 1minute from the first day of your expected period. It has an accuracy of more than 99% in detecting pregnancy from the first day of your expected period. Predictor ® Express measures the amount of the pregnancy hormone, called human chorionic gonadotropin (hCG), found in the urine of pregnant women. Normal levels of hCG in a non- pregnant woman are below 5 mIU/ml. Predictor ® Express detects hCG concentrations in urine of 12.5 mIU/ml and above with 99% accuracy. Due to its high sensitivity, the test can be used 4 days before the first day of delay. hCG levels vary from woman to woman. It has been confirmed in clinical studies that in 90% of pregnant women the concentration of hCG in the urine is 12.5 mIU/ml or higher 4 days before the first day of delay.