CB digital opk frustration! Did I 'o' or not? Maybe tmi.....

Casey • TTC #1 with DH of 6 years!
Tell me what you ladies think.... I've been religiously taking my CB advanced digital opks since CD 9 - that's the day the chart on the packaging said to start. First two days, empty circle, CD 11, flashing smiley which is high fertility. Since then I have religiously tested every 12 hours and not yet received my solid smiley for peak fertility for my lh surge. I'm now at CD 15. Over past few days I have had EWCM and SHOW cervix with a temp dip yesterday and temp raise starting today. Do you think I just missed the surge with the opk or did I not ovulate? Frustrated beyond belief with these CB OPKS! Not using them next month!!!