How do you get used to being lonely?

My parents moved to TN in February before I knew I was pregnant. My boyfriend and I helped them move out there. We are from CA. I loved it there and found out I was pregnant literally a week after getting there. My boyfriend had already flew back home to continue working and going to school until he had more time off for us to take a nice long road trip back from TN to CA. I was in TN for three months, until I was 18 weeks pregnant. My boyfriend flew back and we drove back across to CA so he could work and finish his last few semesters of school. But before I left TN it hit hard how much I’d miss my mom. She’s my best friend and my biggest support. Not to mention my whole family lives down south. I have no family in CA other than my boyfriends family. I tried to talk to my bf about us staying out there while I’m pregnant and even moving out there early. I made ways man. But he was not going for it. Shut the whole thing down. Now we are here. We have had multiple fights about his lack of trying to stay out there. And after it all I just said f it. I’m done. We will wait until he graduates in May. But this pregnancy has been hard to do while feeling alone. I was pressured to take a job that I knew would screw me over since I worked for them in the past. Now I’m working 6 days a week which makes my tailbone feel like it’s breaking. The one day I have off isn’t even the same day as my boyfriends. I work 11-730 and he works 1-10. So we never see eachother. He comes home and sleeps. We wake up kind of late with the way we have both been feeling and I go to work an hour maybe two after waking up. So I really don’t see him. He proposed to me a few days ago and it was beautiful and perfect and I said yes because I truly will spend the rest of my life with him. He’s the sweetest guy. But he hasn’t been the same since I have been pregnant. Not very caring and loving or helpful. I clean up after him all day even though he isn’t home. We live with his parents and 3 bothers so I’ve been helping around the house as much as possible. With no appreciation from him. His mom is planning my baby shower which I didn’t know about until recently and haven’t had a say in. Which frustrates me because I’ve always said I wanted to help plan. My moms ideas get tossed to the side so she hasn’t been able to help either. Which rips my soul apart. None of my family gets to experience this pregnancy or my engagement and his family does. It makes me sad because my family is so sad they can’t be part of it and would be if I was around. But I don’t get that love here. I spend every day alone. Missing my family. Missing my boyfriend. He’s never home and when he is I don’t see him. I don’t get time with him. I’m so so lonely. It makes me never want to be pregnant again. My first pregnancy and I feel so unloved and so lonely. It makes me wonder why I’d come out when I don’t even get to see the person I moved out here for. My family doesn’t get to be part of anything. Now we are finding out my mom might not be allowed in the delivery room when that wouldn’t have even been a problem in TN. I feel like I need my mom more than ever. Especially after seeing how my partner has been. I need someone to help me when I’m giving birth, to be kind and caring and helpful. If you can’t do that On the day to day, how are you going to do that when I’m pushing a human out?? I was ok at first with it just being us because it would have been special. Now I’m terrified of her not being there. My heart is broken. I have no friends. Literally none besides my bf. My baby shower is going to be embarrassing with no one from my side. Because I literally have no one here. My mom and I are best friends. Not to mention I left everything there. My family, my business that I had with my mom, my hobbies and all my dreams. I’m so confused. So hurt. I’m just so damn lonely. Always by myself.