I think that it should fully depend on it how you and your boyfriend feel about the situation. Sure rational decisions are needed if you end up to move in together (who pays what, what kind of rules you do have in your household, what is accepted and what not, how to mix 2 different lifestyles and family culture together etc).
Many of my friends have moved in with their partners after being relationship less than an year. Anyways, I wouldn't stare at it how others do with these issues since it's all up to you. If you feel that it's wrong in your heart, I wouldn't advise you to take that step but wait and see what happens. On the other hand, if you're just stressed about the move and think commitment and 'what if's' - remember that there are also housemates who share the same apartment together for some time but continue their lives separately then. I'm not by any meaning trying to say that you should take that step lightly, I wouldn't take that myself unless I were serious either. I'm still trying to say that don't stress too much, sharing the same apartment, especially if you set clear rules about paying things etc, isn't totally irreversible if seems that things won't finally work out. For example situations like getting married or having kids together will create more firmer bond between you and the other person.
But as said, my final piece of advice is that feel what you feel right inside just now.
"Ei oo, ei tuu, ei heru, eikä tipu
Tämä elo on kuin kivinen perunamaa
Ei oo, ei tuu, ei heru, eikä tipu
Sieltä ituisia perunoita aina vaan saan"
Stig - Perunamaa