Don't do anything in a relationship out of obligation, pride, expectations of others, or fear. If you are moving into together you should both be fairly sure that that is what you want. You don't try living together. You do it as making the next step in the relationship - not to see if it works out. You want to go in thinking this is really going to work; I want to be around him all the time; we are great together. If you can't go into it with confidence then don't do it. It sounds like both of you have doubts. I would think about this some more. Discuss it with him first and see if he has uncertainties and how strong they are. You may be comfortable with each other - but are you in love. That is your answer.
If this has been helpful press accept