Normal for 7 weeks?!?

Tara • 24 & 29. Married. Momma of 2 💕
So I went to the doctor today and I believe I am 7 weeks as of today. My last period was October 12th. My doctor doesn't want to see me until the 17th, which would make me 9w3d and I'm nervous because I'm seeing people post on here that they can see the heart beat at 6 weeks. Is this normal to not be seen?!?