Looking things over, we appear 95% certain to get the 12th draft pick -- we are almost guaranteed to get the 12th slot, which has a very tiny chance at the first 3 picks, and a slightly larger (but still very small) chance of dropping to 13th pick. We are very unlikely to drop, because the teams that are doing better than us (Houston, GSW and Portland) are several games ahead and consistently winning, those below us in the West are all at least 7 games below us, and the East's lottery teams are farther behind than even that, since teams with a record like ours get into the playoffs in the Leastern Conference.
So... #12! Plan on it.