moving out ..

Currently I am 11 weeks pregnant I am 18 & my boyfriend is 20 we plan on getting married and to raise this baby in the best way possible. We are excited to be parents. I am still living at home, going to school and work. He is still going to school and work and living at his parents house. We agreed it would be better if I move out and move in with him since his it’s just him and his parents. They have 2 extra rooms they don’t use, my bfs work is much closer, also my school is as well. VS. us living at my house it’s my parents, 2 sisters, aunt and cousin. There would be no room for us . Yeah we would make it work but it would be too much. The location from my school and his work would be way to far. I don’t know how to truly convince my parents this is the best option without them getting offended .. I love them to death. But I know this is what’s gonna be best for us. Plus my house is only 15-20 min from his . It’s not a drastic amount of time . I’m the oldest and I know my parents will refuse to let me go ... I need to be firm and let them know this is what’s best and I’m hoping you guys can help me out on what I can say so I can assure them everything will be okay