need advice for tomorrow

Hey guys, need some advice.

I got offered a job pending a pre employment drug/ background check. I took the test this past saturday. I hadn't smoked for 16 days and only took a couple hits that last time, and hadn't smoked for 3 days before that. Usually I smoke about 3 times a week. 2 days before the test I did a home test that was the same as the actual one (9-50 w/ nit) and passed. The day of the test I took another one and passed on my first pee of the day. The test itself was my third pee.

I haven't heard anything since then and its now friday (to be fair I live in dc but the lab's in florida). I think I'm in the clear since no news is usually good news but I'm just not sure. I mean they might not contact me at all if everything passed. Should I risk smoking at a party tomorrow or just play it safe until I hear something, even if I have to wait untilbI like start the job in 2 weeks?

Thoughts? Pretty nervious right now.