Confirm pregnancy

K

So I need to call my doctor today to set up my first appointment but I’m a little confused. Some women get in to see their doctor right away to get a blood test to confirm the pregnancy while others have to wait until their 8 week appt to be seen. I would love to be able to have everything confirmed right now rather than wait that much longer. Is that something specific I need to ask for or is it completely up to the doctor?