Does anyone use the clear blue ovulation predictor sticks? I used it yesterday and it showed the…

Does anyone use the clear blue ovulation predictor sticks? I used it yesterday and it showed the circle meaning low fertility but today I got the flashing smile meaning high fertility but when ejecting the sticks the lines looked darker on the low fertility then the high... Would that mean it was incorrect? When I used the cheap ones the lines had to be same darkness or darker but these ones are like almost non existence... HELP PLEASE :/