Hey ladies! I am excited to use the LH test strips this cycle, and maybe learn a little bit more about my body and how it's operating. I am on cycle day 5 right now, period ended yesterday...should I start testing now?? I am confused as to when to start, as my periods are not regular. My last cycle was 36 days, and before that 28 days, and previous to that I had a natural MC...so I am very lost about when to start (I don't want to miss it). I have 17 of the little pee sticks, so I do have a few to spare, haha. I just wonder if it is to early to even bother, considering I just came off a 36 day cycle? I honestly have no idea about how these things work, I get the line reading but not a lot about what happens once you get a positive-is that the only day of optimum fertility? Or is it AFTER I get a positive reading?