I have been using the ovulation predictor kits to determine the best days to have sex. I use them in the morning when I get up and have had no problems detecting my LH surge the last 2 months. My last period was August 3rd and my cycles are normally around 30 days. I began testing on Monday the 13th and forgot to test Tuesday and didn't test until late Wednesday evening. Now the last 3 days there is barely a line at all. My predicted date of ovulation was tomorrow. My question is this, did I ovulate the other day when I forgot to test or am I just not ovulating this month?