I got told the same thing. I Am Also 5 Weeks Along. It is best to get it at 8 weeks because before then it's very difficult to detect anything when doing an ultra sound. At this week and the next our babies hearts have just begin to form and beat.
That sounds normal. I know some doctors where I am from don't see patients until 10-12 weeks. Just be sure to take your prenatal vitamins everyday!
8 weeks is fine. I didn't know how far along I was and scheduled an appointment. I got an ultrasound to determine that I was 7 weeks. You might get an ultrasound. .. depends on the doc and your insurance. My doctors office does them that early to see how far along you are.