I started using the LH strips (first time) on Feb. 21, which is CD7. I did 2 tests-afternoon and evening, and the afternoon line was prominent, but not as dark or darker. The evening one is questionable, it is pretty close to being as dark as the control line. In my head, and with some research I've done, CD 7 seems way too early for the LH surge, no? I have followed up with the tests, 2 a day at similar time frames, and they are consistently getting lighter? Does the hormone normally fluctuate like this? I am going to keep testing for a while, just to see if this does happen, and perhaps my surge is yet to come. It just seems very odd to me that they got dark, and are now significantly lighter. Has this happened to anyone? I feel like I am being tricked! haha