Usually you will be able to keep pork in the freezer from one to two months, depending on how it is stored. If the pork you have put in the freezer has been vacuum sealed, chances are it will be good for the full two months if not longer.
Although people have certain stored good pork in their freezer for longer than two months, that is the average maximum amount of time. After two months the pork will most likely start to get freezer burn, leaving it inedible.
You will definitely want to make sure that you take out your pork and inspect it thoroughly if it has been in the freezer for more than two months.