I've been taking OPK twice a day with both the clear blue digital and the test strips. The results have matched except this morning, the clear blue is still a flashing smiley face (high fertility) and the strips are showing same color lines (positive). Obviously we're BDing as much as possible but which one is correct about peak? I've been using the strips for the past 2 months and no BFP so trying all avenues to ensure we're doing our best to time BD with ovulation.