Doctor issues.

Hi! I’m new to all of this. Not my first pregnancy but hopefully my first baby. I’m the farthest along I’ve ever been but I’ve got a few concerns. I’m sorry if this sounds like a mini rant but I’m mad and don’t know what to do. My issues lie within my doctor. I have O- blood. My grandmother is an ob nurse and a couple of ppl I work with have friends or family who are nurses as well as I do. Every one of them has told my my doctor shouldn’t be doing this. He is refusing to give me a rogham shot until I am 28 weeks. He said it’s because there’s no real difference in my blood vs baby blood until then. Not enough that my body would flag it. But the baby I lost most recently I lost at 9 weeks because of the difference in blood type according to the hospital. No matter how much I ask him for said shot and show him the sources I have saying I need it, he will not give it to me. Another issue I have is that I can’t make it to any of my appointments. They schedule me at a time he says he’s going to be at the office closer to me but then a few days before said appointment all of a sudden he’s going to be at an office that’s over an hour away. My car is not going to make it that far and there’s no other doctors close by bc I live in a small town. The only obgyns are either an hour away or farther. I don’t know what to do. Please someone tell me you have some advice for me.