Lost and Confused

Every since I could remember, my boyfriend couldn't wait for us to fall pregnant. He also has had 3 other pregnancies (but found only two of them were his). So last year we did and it was the hardest time I have been thru, due to him finding out two of the three children he thought was his with his ex wife I felt I paid the price for that thru out the pregnancy he did not attend even one of the appointments, ask about the baby or showed interest like an excited father, yet he said he was so happy. I battled with this until I gave up on him, later in the pregnancy he started showing a lil interest, but we lost the baby while I was 8 months pregnant. He didn't show much emotions until months later and we talked about what we were both feeling during that time. He cried over it and then started asking if we could try again. I was reluctant as I still have school and work, but at a later stage I agreed. Within 2 months we fell pregnant ( 7 weeks 3days today). But now I am lonely, he is showing some tendencies from last time, I really feel alone. I thought he would understand that especially the first 12 weeks are hard on me emotionally and physically since this is not our first time but I feel the distance. I understand it may not be easy dealing with the highs and lows your partner feels when you also got work stress, am I asking for to much?? I also have work and school to worry about and I am the one pregnant going thru changes and ups and downs. I really feel down and don't know how to deal this I am unhappy