I'm sure I'm in the minority, but divorce is not an option for me ever, so I could never tell anyone to think about divorce. (unless there was issues with violence)
You knew what kind of guy he was before you married him, so why get upset now? I say just talk to him and put some effort in communicating when you all are at home together, if that does nothing, try counseling.
I'm sorry you are going through this 3 months in, however, again I have to ask why are you upset when he has always been like that? I know he had a job when you got married, but he is still the same person with or without a job. I understand that people grow and mature with age hopefully, but 3 months and he is doing the same thing he was doing before you got married, yet you feel stuck? You should feel stuck because you married him, so go in that room with him while he is watching TV and smile and talk to him. Heck, help him find a job.
Flame if you will, but if I knowingly marry a lazy man, then I'm going to still be happy 3 months later with his lazy self.