Harsh advice here Strappy but its something you do need to seriously consider:-
This is all about power and control and currently he's got all the power and control. My guess is that he has managed to isolate you over the past few years. Would bet you as well that he does not like your family at all and has tried to isolate you from your friends. The fact that you are together 24/7 seemingly is also very bad news. He has you in a gilded cage of his making. Controlling men rarely if ever change and certainly do not without counselling. His controlling behaviours are deep set in his pysche.
You have gotten yourself into a real pickle - you do not want to get pregnant by this man.
Learn to Stand Up for Yourself
Start taking responsibility for your actions.
It's time to examine how your behavior might enable your controlling partner. You are giving him your wages for one thing, this is fuelling his control.
Negotiate boundaries with your spouse.
Don't negotiate when you're arguing, but during "peace time." Agree to have a consequence if these boundaries are crossed. For example, if your controlling partner starts to dominate a discussion, call a time-out. Revisit the conversation only when you're ready.
What's the cost of your relationship?
Ask yourself, "What is it costing me to be in this relationship?" If the answer is your dreams, identity, or dignity, the cost is too high.
Should you agree or disagree?
Controlling people often participate in emotional extortion: "Agree with me, or else." For the good of your relationship, sometimes it's best to agree to disagree.
Look at all of your options.
You don't have to engage in explosive arguments when dealing with a controlling partner. Refuse to participate when your partner is trying to control you.
Suffering in silence isn't love.
By not dealing with a controlling partner's behavior, you're only enabling it to continue—and are therefore cheating the relationship.
I would also suggest you read Lundy Bancroft's book called Why does he do that - Inside the minds of angry and controlling men (that's available on Amazon).