I don’t know what your fermentation temp was but if it was in the 60’s you could warm it up to the 70’s and see if it ferments out more. Also give it a taste. If it’s not done it may taste sweet.
You will soon see how handy a hydrometer is. They are glass so think about getting a spare. Try Ebay or Amazon for one. Make sure to get the test jar also. The plastic sleeve they send them in is not wide enough to keep the hydrometer from possibly sticking to the side.
Here is a pretty good thread about them Hydrometers You need one, here is how to use one - #7 by dandrett
