Would you leave a not affectionate husband?

Sometimes I feel lost. We have been married 7 years now and he always promised to learn and change but has done no effort to change a thing, let alone even change.

From 5 years anniversary I started feeling like it was only a lie to lead me on but he never had any intention to change because he never tried.

Currently I am pregnant and have nausea. I feel awful. And all he says yo me is he doesn't know what to say or do. He also hints on wanting to discuss more about my being tired but says am not in the right state of mind. But that is the point. I dont want a discussion or very intelligent points about how I shouldn't let tiredness get to me, I just need him to hold me and say it will be fine, or to order me food since standing long makes me sick, or to listen to me, or to help clean up a little, I can think of so much he can say or do to show he cares but he says he doesn't know! The pregnancy is just one example. Have been starved of affection and romance for so long I now don't even feel like a woman. I have never even rejected him sexually and have done everything to satisfy him but I feel like I get nothing in return. Now I feel like maybe I should stop having sex with him because I never imagined having sex withsomeone I don't believe is in love with me. But a part of me is scared if I do that, if I reject him even once, I might sign the death of our marriage and he will cheat which of course means I would leave him because I cant stand cheating.

Please don't say I should tell him because I have done just that for more than 8 years and it never did anything. Just brought about empty promises that later brought about even less trust because I cant believe his words.

More and more I notice I want more in in relationship than he will ever give me. I am not ok with just pretending to be happily married. Most people who I talk to say what am looking for is not out there. Should I just settle in a loveless marriage or be more patient?

UPDATE: Thanks all for your advice and tips. Like I said earlier, I have told him for more than 8 years what I need and want. He even sees it in how I treat him and others I love. I havent just demanded but I have gone out of my way to make romantic dates, count down calenders, sweet notes etc but still it aint enough.

And to the one that says I knew he was like this before marriage and then settled only to nag him into changing, please I didnt settle. At least I didnt think I was settling. I got married when I was young and a virgin. Obviously we went on dates, I remember him getting me cards and flowers, as for the physical romance, there was little chance to know because we were abstaining. I remember asking him why he wouldn't hold my hand when we walked together and he told me it is because we are not married yet. But when we are married, he will free to hold my hand. I believed him and respected his boundaries because it made sense due to his principles and faith. But then we got married, he still doesn't hold my hand and now he says it doesn't come naturally to him. So maybe I was naive to read that as a sign that he wasn't affectionate but he really was for what was permissible.