I don’t believe you should as Brie is classified as a soft cheese and if I am not mistaken soft cheeses aren’t considered safe to eat during pregnancy.
It’s fine. Just has to be pasteurized.
As long as it's done with Pasteurised dairy you're good. Same with all the soft cheeses. I know in the UK most supermarket soft cheeses you can buy on the shelf are pasteurised. I learnt this having done a deep dive during one of my panics!
Advice in the UK is to only eat Brie if it’s been cooked