OP...
Abusers are ALWAYS nice some of the time. I wish more people realised this. Abuse, like rape, is widely misunderstood. Just as many people think it's not rape unless a man leapt on a woman with absolutely no preceding events and she had to crawl to the police station weeping and bleeding immediately afterwards, many people think it's abuse only if he's constantly beating you with no reprieve and you go home every day covering your head with your hands and cowering. Abuse can be complicated, rape can be complicated, in fact they almost always are. But that doesn't mean they're not abuse or rape, or that they're in any way justifiable, that they are not vile and repulsive acts that SHOULD NOT BE HAPPENING.
You miscarried. His response was to prioritise work (please reread your post where you justified this because he, er, was working the previous week as well), try to persuade you to have SUBSTANDARD MEDICAL CARE because it was more convenient for him, and CALLED YOU NAMES.
This is abusive behaviour and it is NOT OK just because he sometimes hugs you or covers you financially (and don't imagine he's not using that as a major form of control either). Abusers are ALWAYS nice some of the time. It's how they keep you unsure enough to stay with them. It's how they maintain their own self image of a good person who's just sometimes FORCED to act badly because YOU'RE so terrible (this is really common - this is honestly how these cowardly shitbags see themselves. It's one reason they're so convincing when they tell you how great they are really. They sincerely believe it.). It's how they get you to keep acting the way they want; as long as you behave, they'll be sweet to you, mostly.
Abusers are ALWAYS nice some of the time. But how would you even know it with a man who neglects you and calls you names and expects you to have unnecessarily sub par care because your miscarriage didn't suit his schedule? If I hit you over the head repeatedly with a shovel, I'm sure you'd feel very blessed and happy indeed when I stopped for five minutes, yes?
You are horribly vulnerable right now in every possible way, so I understand you can't just do a Gloria Gaynor on his disgusting abusive arse just like that. But please, please, please, look into how you and your child can leave this terrible situation. There is help available, there is support, there are people here on MN who have done it in even worse conditions. It can be done and you CAN do it.
Do NOT be put off by the fact you're financially dependent on him. You're not married so you're hugely vulnerable in that respect anyway. And while you don't mention it, if he doesn't use his financial leverage over you in some way already, or wouldn't be prepared to, I will eat my hat. I never, ever, ever knew an abusive man with financial power who didn't use it. It's just a matter of time. Get out before it gets worse.
And for the love of God, don't have another child with this worthless piece of shit.