Will I pass a employment drug test if I haven't smoked pot for exactly 30 days/month?

I have an interview and I'm pretty sure I'll pass for sure because I binged on water lately and I'm pretty sure I'm gonna get hired on the spot but I need to know if I'll pass the drug test and mostly likely it will the urine test and I haven't smoked for exactly one month I'm 22 years old I weight about 310 pounds and I'm 6'4 so I'm a pretty big dude so I need to know thanks!