I've been using Clear Blue Advanced ovulation tests and you get a circle for low, a blinking smiley for high fertility days, and then a static smiley for peak fertility when your LH surge is protected. When I tested yesterday it was a circle and today it was a static smiley, so it skipped the "high days" all together. Last cycle I had almost 4 high days before peak. Do you think this is an error? Has anyone else gone from low to peak in a day? So confused!!!