Patience is one of the hardest parts of homebrewing, so relax. As long a there is yeast and priming sugar it will carbonate the bottle. However some brews take longer, depending on several different factors.
If it isn't ready in 2 weeks give it one more. If it isn't ready in 3 give it another, the process will work.
Some really high alcohol beers that are aged in primary and/or secondary fermenters for lengthy times can take months to carbonate.