This is our first time using OPKs and I’m so confused! I understand that no matter what the lines look like, it’s still negative unless they are as dark or darker than the control line. But I started tracking on cd 8 and I’m now on cd 12 and my OPKs are getting lighter every time I test. This is supposed to be day 2 of fertile window so I guess I expected the test line to stay as dark as before or getting darker. Could this mean that I’m not going to ovulate this month?