Hello! I used these last month and all was fine. Bought a new pack for this month. Today is cd11 and I used them for the first time this morning- got a static smiley. Dtd but am worried. Two things - firstly isn’t it always supposed to be an empty circle when you first use it for the month as it is establishing your baseline and secondly if I am ovulating isn’t that very early?? Thanks so much for your thoughts xx