Why do men want control over women?

So I have two kids and I have stopped getting my birth control shot in July. But my periods are really bad and I dont want another baby right now. So I want to starting getting my shot again. But my bf doesn't want me on birth control at all. He says that birth control is not healthy but the real reason is that he wants a son. We are not married but he feels like I'm his wife so he feels like he can control my body and the way I dress sometimes. So how can I get my point across without arguing?