digital test?

Alright so I bought a two pack of clear blue digital tests and I decided to try one tonight with urine I've been holding for a couple hours. So I used it and literally NOTHING happened. So I tore it apart and pushed the battery so it would work and it read pregnant and then the battery started moving around and as it did the test started changing the answer? And then it went all haywire and said error and then just not and then back to pregnant? I know it's faulty but has anyone else had this happen?