Decided to brew a dark mild ale for my 5th home-brew using Safale S-04 dry yeast that I re-hydrated before pitching. My OG was about 1.034, which was lower than the 1.040 the beer recipe indicated it should be. After about 12 hours, it was fermenting happily at a constant 68 degrees (I have it in a mini fridge with temp controller) and there was a thick layer of krausen. I left the house for the 2 days, and by the time I got back, the krausen had fallen back into the beer and it had mostly stopped fermenting. My ferment on the last 4 brews has lasted about a week so I thought this was odd, but I left it alone for another week and a half before the tested the gravity just now. It came in at 1.010 so it obviously did some work, but that gives me a pretty low ABV of 3.2%. It's not supposed to be a high gravity beer, but should I pitch some new yeast or should I just let it sit a little while longer in the primary before kegging? I don't want to overreact but I also don't want watery beer Thanks for the help, as always! Cheers.