It took 3 weeks and 8 urine tests to finnally show a positive with my current pregnancy. So Im guessing the tests that they had at the doctors wasnt as effective. The only thing I can think of is buying another test if its bugging u heaps and if that comes up positive, take it with u to the doctor and if u can get another one with the 2 tests in it, take the second test with u and do it in front of them (not the actual urine test the putting the stick in thing).