Am I wrong for only want my fiance in the room?

So, I'm only 15 weeks currently but I have had to share these happy 15 weeks with my mother and sister being SO overbearing and almost acting like I'm going to birth THEIR child. They wont allow me to go to appointments alone, they are sharing MY ultrasounds on social media when I specifically asked them not to and trying to force me into not knowing MY child's gender because THEY need to know first and throw a party (which is another thing I made clear I did not want).

Well, after all of this, I decided I only want my fiance in the room when I give birth. Because I'm afraid that since he is so shy and soft spoken they will push him out of the way and ruin HIS childs birth and his first moments. I kindly hinted to them about this and they WENT OFF. Saying I dont love them and I choose my fiance over them and my mother said "I wont fucking come at all since I'm not wanted"

I'm just lost. I feel bad and I know I shouldnt. They have to make everything about them but at the end of the day I'm starting my own family and this is NOT their baby.

Am I wrong or hateful for my decision?

How do I fix this for everyone?..