I started using the ClearBlue digital opks this cycle. I started what I thought was super early in my cycle (FF didn't have my FW for another week), almost on a whim because I wanted to start using them. Here's what I've got so far -
Are these the cbe opks that have the flashing smileys as high fertility days and the static smiley as a peak day? Those are the kind I use and I tend to get anywhere from 3-4 days of the flashing smiley before I get the peak read. I only use them once a day in the morning though. The cycle I got my BFP I had 5 days of smileys before the peak read and this last cycle I had only 1 before the peak read.
One more question...am I actually fertile on all of the "high fertility" days? Everything I've read approximates a 4 day window of fertility, but I'm now on day 7. Each day I log in the high fertility reading on FF the app pushes my FW back.
Most likely not. I'm assuming that once you get a peak read FF will enter the next day as your ovulation day and the record the 3 days before it as fertile days. Are you entering the test results in the advanced opk section on FF? Whenever I enter high readings, FF doesn't push back my FW. It highlights the days of high readings in a dark green to indicate those days as potentially fertile.