Hi basically I don't want to sound complete paranoid but over the weekend I've had 4 positive pregnant test results. Each one I did in a lid from a dry shampoo bottle. It was clean and dry. Anyway I always left the test in for a few seconds more, is there anyway this could have given me a false positive? One test was the clear blue and it said 20 seconds and I left it in for about 25 seconds for example, another was hold for 5 seconds and I left for 10 thanks all