Confusing Clear Blue

I just started using the clear blue digital OPK this cycle. Saturday I got my first flashing smiley face, which is supposed to indicate a high fertility day. So I expected to get a solid smiley face today to indicate ovulating because the box says it identifies 2 high and two peak days. But so far I've just gotten 3 high days. Is that normal? How many high days can I'll expect to get before my peak? So far dh any I have bd every day I've gotten a smiley face.