Originally Posted by HoboBrewery
The higher the gravity, the longer the beer takes to carb and mature. Forget about them. In 3 more weeks they will probably be spot on. Too early to be worried.
X2. I had a batch that was a lighter beer but still took quite a bit of time to be carbed. I ended up drinking a different batch for awhile and went back to it. After giving it over a month in the bottles it ended up being one of the best beers I've made so far, and one of the most popular. Also make sure your bottles are stored in a warmer (like 65-70 degrees F) area to push the yeast along. Too cold will cause it to take longer.