First response

So on may 8th i took a first response  home pregnacey test.  I did the usually pee on the stick and wait for the results during this time as the urin ran across the result window a little. Almost whiteosh grey line showed up where the test line was  then it continued  to wards the control line which turned pink the results all happend with in the result time frame .      Could this have been a postive pregnacey test or an evap line.  Oppions please