probably not. something usually stays in you for 3 months
If you are 42 days late, but a home test is still showing negative - and I assume the test has been taken at least twice - then it might be appropriate to consult with your doctor, but wait till day 44 (one month past last period plus two weeks) and test again. Of course, if you are of an age where menopause is likely, this may not be a concern. But if not, then you should see your doctor.
The writer, who once ran a testing program, knows of one instance where it was detected in small quantities after 42 days. THC metabolites (which are what the test looks for) are stored in fat. The heavier you are and the more you have smoked, the longer it lasts. Even in a thin person it would be detectable for at least two weeks if you've smoked much.
No. Negative 24 is greater than Negative 42.
41 - -42 is 83
It is negative 233 over 42 = - 233/42 or - 523/42
6 times -7 is -42
-25 + -42 = -67
Negative 41.
D days make D/42 lots of 42-day periods.
42+(-29) = 13
42 days. 7 days x 6 weeks = 42 days.
negative 42