I'm WTT but am experiencing some weird stuff with my cycles and temps. I want to go to the doctor with as much information as I can possibly have about my silly cycles. I decided to take a first response fertility test this cycle. I got a positive result and now I'm coming on the OPKs. I want to make sure that I am Ovulating and if i am, then when in my cycle it occurs. My temps are all over the place and FF hasn't detected anything over 4 months of charting. I was wondering, what times of the day are usually best for OPKs? The instructions sat that anytime will do, just don't over hydrate, but there has to be a window that works best right??