How to re kindle a relationship?

I feel so disconnected from my husband recently, has probably been like it for 7 months - I just feel we live almost separate lives and his wants/needs/values/ambitions ect are so different to mine. The intimacy has gone and I just don't feel any spark between us - he doesn't really think there is a problem so it's kind of hard to fix things. I try date nights, conversations, little get away, iv also taken 3 weeks away from him to go visit my family, I felt as tho I missed him a little bit but was hoping to be really excited to get home to him and I just feel the opposite. I really want to make things as I am pregnant and obviously don't want to throw our marriage away! Any suggestions?