I had a dream where my teacher and her husband were my parents and I lived with them (obviously) and it was just like a normal family but she was still my teacher in the dream and she was going to have another child. Also in the dream it's like I knew I wasn't really her kid but she didn't and neither did her husband.

It's called a dream. I suggest you look up what a dream really is. There is nothing to read in to here.