Hi im new to this, and here is question...im so frustrated. I mean, i can`t tell by my OPKS,what is a positive and what is not! Im using them with preseed, the thing is my period goes from 36 to 41,My last period was Sept 13th so i started to have bding since yesterday, just because one of my ovulation tests seemed positive, and DH he keeps telling me the lines are the same, and i tell him it should be 10% more since my control line is also not THAT dark, so im completly Looooooooooooost!!! help: