Confusing OPK signals

Hello ! We have been TTC for two months now and I decided to use clearblue digital ovulation kit this month. Usually have a 32-33 day cycle and quite regular with no troubles so far. I started testing on day 13 and got a flashing smiley on Days 20-23. Then had a circle (low fertility) on day 26 and today on day 27 I got a peak ??!!! Quite surprised as I expect my period to come in a week ! Felt my CM a bit wet so tested out of curiosity and got this but I’m confused now. Any advice ?