After your sentencing hearing, you have the legal right to appeal but you must file a Notice of Appeal within a short period of time. If you signed a plea agreement, you may have severely limited your appeal rights. That may have been a very good decision. You should have already discussed the waiver and how you are affected by it with your lawyer. If you elect to appeal your sentence, tell your lawyer immediately so that he or she can take the steps necessary to begin that process. If you fail to exercise you right to appeal within the time limitations, you may not be able to pursue an appeal later.