Moving in with SO

So my boyfriend has been BEGGING me literally to move in him him and his 2 friends (a boy/girl that are in a relationship together) ever since we started dating (2yrs ago) 
I am raised that no sex until married (didn't follow up with that xD) and that you are not to live with a boy until marriage. My boyfriend on the other hand is like we should live together before we're married. I am a 19yr old girl and I don't really want to because living at home right now isn't terrible..
He's pressuring me a lot even "I'll buy you a car if you move in with us)
I want to always see him of course because I love him with all my butt (it's bigger) but ughhh it's so complicated 
Morals vs Reality?? 
Idk
What would you guys do?