If it's a normal alcohol beer, most of the heavy fermentation could be over in 36 to 48 hours if everything was just right. It's probably still working, just at a much slower pace. I'd let it settle for a few days, transfer to the secondary and relax for a week or two. Take a hydrometer reading when you transfer it to the secondary and check it again in a couple days to see if it has changed. I'm sure your fine.