i’m so scared

so we have our first ultrasound appointment on the 23rd and i’m so scared to go in and be told there’s no heartbeat. I cry about it every night even though i went to the ER at 6 weeks and they found the heartbeat right away and were surprised they even saw it. I’ve completely convinced myself i’ll be heartbroken at this appointment so i should prepare now. The only thing giving me hope is that for the last 3 nights i’ve worried about it i’ve had a dream where i went to the appointment already convinced something was wrong and hearing a heartbeat immediately. Did anyone else feel this way?