Hillary Clinton is on track to win more than 300 electoral votes and that's unlikely to change over the next week.
The only way Clinton loses at this point is 1) massive and obvious vote fraud (this could possibly set off Civil War II*) or 2) incredibly inaccurate polling (this is unlikely in the extreme).
So no worries there.
If you must worry about something I would suggest that you focus on our mindbogglingly unsecure voting machines. All it would take is enough machines to be compromised so as to render the entire election questionable, or outright invalid. Whether this would be by the FSB or a 400-pound hacker wouldn't matter in the short run: our system isn't built to handle this outcome and thus perhaps setting off Civil War II**.
*This is now, in my opinion, inevitable. It's merely a matter of timing.