Anyone who has is using opks or gotten pregnant using them is it normal to have no lh reading show up on the test strips? I ovulated on CD 63 with my peak fertility on CD 62. Then between CD 64-69 it seemed like my lh was actually working it's way back up higher (I assume since I am getting closer to my period), but last night on CD 70 it just dropped off steeply. I used another opk today and though you can very faintly see the line where the results show, the app registered it as "0". My question is if that's normal for lh to fluctuate that much and drop off to 0 or too low to show results? I am 8 DPO and one app says my period will be in 6 days