So I’ve been using OPKs this cycle and I have the dollar store ones and the clearblue advanced ones. Both started negative last week.. then the advanced progressed to a flashing smiley.. then to a peak.. all while the dollar store was still negative. After my clearblue peak the other test started to get darker..

Today the test showed positive! But my clearblue now shows negative! 1st picture is the dollar store test when my clearblue peaked and second test is today