I’ve tried to find this movie since I was a girl

It’s a horror movie about a group of people who went to stay in a house with this old dude and weird things kept happening.

I remember one scene with lots of mirrors and the main girl kept turning around trying to leave and she was pregnant in the movies.

For some reason I always thought the name was “house on haunted hill” but it isn’t obviously.

I know it’s not a lot of information but I was 10 and not allowed to watch horror so that’s all I remember and I really would like to watch it now.