Betas and first appt after miscarriage

I had my first blood draw yesterday and was called today with the results. 1939 at appox. 21 DPO. When they called me with the results my doctor's office scheduled me for another blood draw, an ultrasound, and an appointment with the doctor on Monday.

I don't really have much experience with betas except when I had my miscarriage in March, when I went in the first time they were 140 and then I went back 2 days later and they were much lower. 

In March I felt like the pregnancy wasn't real and was nervous the entire time. I feel much more positive this time.