Anyone here from uk and know how pregnancy works over here??

I went to the gp when I was 5 weeks and she said she would refer me to the midwife and my appointment will come in the post, it still hasn't arrived and I'm just over 6 weeks, also do you have a scan at 8/10/12 weeks?? I'm new to all this and I think the midwives do things different in the us to over here?? I just wanna know when my appointment is and what's going to happen :(