I was wondering if anyone had this same experience. This is my first round of letrozole after months of ttc with no luck. When I have taken opks in the past it gave me a couple days of flashing smileys and then a solid smiley. After finishing my first round of letrozole, I am now on my eighth day of flashing smileys (on cd 18). Is this normal or has anyone experienced this before? I wasn’t sure if it was because of the letrozole or that maybe I’m just not going to ovulate this month. Thank you for any advice!