Is the OPK positive???

Charlotte

Is cycle day 16 positive? I’m sure it’s not as dark as the control line but now the tests after this are complexity light and I’m wondering if that was my surge?? I tested 3 times that day and that was the darkest it got - I’m not convinced it was but now I’m second guessing myself! Has anyone ever experienced nearly positive tests and then had LH surge later in cycle??