Am I being unreasonable?

I sit at home everyday pregnant. My bf works allday and then goes to see his kids at the ex s house from 1.5-3 hours on weekdays. I basically see him when I'm going to bed. We have sex, we goto sleep, he leaves for work at 520 Am and we do it over and over each day. I love him with all my heart and soul. But he's on his phone a lot ( witch I hate!) and my time is so short with him mostly. I feel alone. I don't feel as loved as I used to feel. We only been together maybe 6 months and yes were having a baby that soon..

We have talked about getting married and everyone knows in his family and mine.. I just don't feel like has making me a priority in his life anymore. He wanted me pregnant...I know some ppl are different and don't quite live the same way as most people..but I just don't know why I feel this way. Too much time by myself? Overthinking the situation? He just doesn't understand were I'm coming from and says that he feels every relationship is the same and he thought ours was different? All bc I don't feel right about how he has to go over there to see his kids and how he's always on his damn phone. I'm older than him by 6 years.....I know I'm more mature, but what do I have to do to make him see? I have gotten upset and yes doesn't care. He doesn't come after me and try to explain or anything...He does with his ex when she pissed him off

I'm starting to think he really doesn't love me. I'm feeling like someone else was worth his heart and arguments...it's clearly not me. If a man gets upset back at you it's because he cares for you I think. When they don't.... Its like your not worth the effort. Am I wrong? My time with him is basically laying next to him at night sleeping...it's like being alone basically and kills me inside. I asked him if it would be this way when the baby is born..he says no, but I'm not sure if I believe him. I don't want to give him a hard time and push him away...are my feelings valid guys?? Shouldn't he care when I talk to him?? I always feel like in every situation that I have to make the sacrifices.....it's making me angry. If I am overthinking please tell me bc I don't wanna push him away...it's just how I feel...