OP,
He's a bully.
Of course he dismissed you.
You expected it.
You were correct in how you expected to be treated.
It's called Gaslighting.
Educate yourself on what it is, and I'm sure it will ring bells with you.
He has shown you EXACTLY who he is.
He has shown you EXACTLY how disloyal and disrespectful of you he is.
At least you can't pretend you didn't know EXACTLY what you signed up for, going forward.
He is a deeply vulgar, disrespectful, little man.
You WILL realise this at some point, and no doubt be full of regrets.
Youwill recall this weekend, when you were shown EXACTLY who and what he was, but were unwilling to face it.
I hope at least you will take on board the reccomendation from posters, to reach out for as much support from friends and family, for the duration of the pregnancy and after the birth of your baby if you go ahead with it.
I have absolutely no doubt being married to the type of man your husband is, you will hugely need it.
This is a time when you should be loved and cherished by your husband.
Not a time to find him have a skit at your expense, about you and your medical information.
Good luck