feeling guilty?

My SO has been nothing but supportive my entire pregnancy. We only knew each other for a month before I got pregnant so this has not been easy on our relationship but we've been strong for each other and our daughter. I'm due in 2 months and my boyfriend has made so many changes for us, I never forced him to and always told him I didn't want him to change who he is for me. I love him so much and I'm so grateful for him. But lately I've been feeling guilty about getting pregnant and changing his life. For me, as scared as I was now I feel like this is the best thing that could of happened to me. She's not here yet but she's already my best friend and I'm so excited to meet her lol. He's excited too and he's happy. He's never complained about it but he's had to give up a lot and he's had some pretty big changes to his life. We met on Facebook and we were actually friends on there for a while before I actually met him, he was really into cars had tons of friends and followers really popular in the scene and knew people all over the country because of his car. I've never been into cars, but I support him as my hobby is makeup and I was a makeup artist for a photographer but stopped when I found out I was pregnant. He came here when he was 11 from Cuba and has always lived with his sister. Well his sister is an awful person and he doesn't see it. But who am I to come between him and his family? But she's always borrowing money from us or not able to pay her bills. She has 4 kids and her boyfriend has 3 and we all live in one house, his kids are only there on the weekends but the house is sooo loud. We all live in a house together, the rent is 2000$ a month. 1000$ from us and 1000$ from her. She can't pay her portion most of the time and my boyfriend covers it but it leaves us broke and it drives me crazy to see him work his ass off for us and end up stressed and broke because of her. We finally talked about moving out into my parents house and getting rid of his car which will leave us with an extra 2000$ a month. Him and my dad get along great, unlike me and his sister who I do not talk to because I have nothing nice to say but I respect him enough to keep my mouth shut and not start problems.