could failing a drug test mean ur pregnant? updated

So a week ago I took a piss test for a job now I don't smoke, or drink I don't even take Tylenol when I have a headache. so she said I failed the drug test? I can't remeber what she said I had in my system but it's something u get from taking pain killers. I still have not gotten my period I was suppose to start on the 2nd. I was pregnant around this time last year but ended in a miscarriage last January been trying all year. has this happen to anyone. UPDATE: Well come to find out I am pregnant took us a year to conceive after a miscarriage last January. now I can't say for sure if this is why I failed the drug test but I don't smoke or drink so there would have been no reason for me to fail.