Fermentation and airlock bubbles are only slightly related. With a well sealed fermenter and a good airlock you should see bubbles within a few hours of fermentation starting because the yeast are eating sugars and producing CO2. That CO2 production only lasts 2-3 days usually. From then on the yeast produce no more CO2 but there is a lot of the CO2 dissolved into the beer and that coming out of solution can make the airlock bubble for weeks. The only way to determine if the fermentation is complete is to use your hydrometer.
Unless you took the cover off to sniff the nice aroma, your beer is just fine and would be fine for a few months. Take a hydrometer reading now. It should be somewhere between 1.005 and 1.020. If it is, it is time to bottle that beer.
Most of us would take a hydrometer reading between day 10 and day 20, record the reading, then take another a couple days later. If they match we bottle. Learn to use your hydrometer as it is the only way to determine if the beer is done fermenting.