How long will it take to get out my system if I smoke?

So I smoked last Saturday for the first time in about a month, I used a pipe, got high twice and took less than 10 hits that day. Well, I applied for a job in fast food and they actually want me however I'm currently reading the handbook and they drug test you before they hire you. It didn't even cross my mind. And now I'm totally freaking out. I think I'm screwed.