Oh my...

I am sorry that you're going through this.

I can only give you some words of advice from looking back at that time in my life...

You're still at the stage of trying to separate from authority figures in your life.
Your parents, and his, are still learning how to let go of their children. And in doing this, they're acting like children themselves.

To add to this big emotional mess, you're learning how to be married.....

I personally am giving you full throttle permission to NOT TRY TO PLEASE ANYONE EXCEPT YOURSELVES.

It's difficult and it's unpleasant, but if you want to be happily married, you have to make your own choices and be happy with them. You have to care a little less what your parents think and when they speak, just smile and nod and then turn around an do your own thing.

I guarantee that they had to do this too.

They will give you a hard time. They will make you feel wrong and bad and guilty. They may try to get one of you on "their side" in order to persuade the other. Don't fall for this.

Eventually, things will settle down.

And yes...you're young and can change your minds about any part of your lives, as many times as you like. And not have to explain yourself to anyone.