How??

How did you keep yourself positive between you BFP and your first ultrasound?
We found out we were expecting 2 weeks ago and have had no symptoms other than tender breasts. I am currently 7 weeks and have out first ultrasound on the 20th. I find myself often very concerned that we won't see anything on the unltrasound and that the pregnancy isn't progressing. I have taken pregnancy eat regularly and the line has gotten significantly darker. I have not had any blood work done to confirm. Doctor doesn't want to see me until the appointment. 😕😐