No it just means you're airlock is not bubbling. An airlock is a vent, a valve, to vent of EXCESS co2, not a fermentation gauge. Al it means is that means is that EXCESS co2 is not being produce. It doesn't mean that fermentation has stopped, more than likely it is winding down, and the yeasts are still eating the sugar, but as sugar decreases, less extra gas if needing to be released.
The only way to know if fermentation is complete is with 2 consequetive gravity readings over a three day period. I recommend brewers take their first reading around day 10 or 12 after yeast pitch and again 2 days later.
Remember an airlock is not a fermentation gauge, a hydromter is.