My former husband was a workaholic. He worked, lived and breathed his business, all day, every day. I felt neglected but guilty because after all, he was a great provider for me and the children. We wanted for nothing, had two new cars, a beautiful fully furnished lovely house. I had jewelry, nice clothes, a full fridge and freezer of food....everything a wife/mother could want............except an attentive husband.
He came home, immersed in business, even on his day off. There is nothing worse than feeling alone when you are not even physically alone. I felt like we lived two separate lives. We went to marriage counseling and it was there that I found out something very interesting that I never even imagined.
My husband was abused by his mother. He had emotional intimacy problems that magnified in time. His workaholic behaviors stemmed as an excuse of avoidance. To avoid me, our children, our lives together; because he was unable to cope with being close to us. Working was dignified and money meant he was successful, in his eyes. Our marriage suffered greatly as a result. He could not change. I did not have the power to erase his train of thought, so we divorced.
I implore you to seek counseling. If not with him, go for yourself. In the mean while, PLEASE do not get pregnant. It is not fair to bring a child into this marriage unless and until you are going to be a happy wife.
If you do not make the effort to get things on track, you will never know if you left the marriage in error. So, seek out some help so you can have the strength to stay or the strength to leave.