So I purchased the one month supply of the Clearblue Advanxed OPKs. I started testing on CD10 (not FMU) it was around 6pm for a 30 day cycle. Usually always 29-30 day cycles. Result for CD10 and 11 were both the circle (low fertility). Cycle days 12,13,14, and 15 all flashing smileys (high fertility. However I tested two times each of the high retiring days, so I unfortunately ran out. Cycle day 15 I ran out and got FR OPKs and instructions say to use FMU... I am doing that but also testing in the evenings. It appears the darkest lines on the FR I got on CD 15 but the test line and control line did not match completely. Now I'm lost in confusion because I feel like since I never saw a Peak on the CB that I'm out. I did BD everyday from CD10-14. Anyone ever use either of these? What was your outcome?