Left worrying 😩

Do The doctors always go over your ultrasound with you after the ultrasound tech is finished or do they only go over It with you if they find something wrong. I went in for my 20 week scan immediately left, after about 20 minutes later I got a voicemail asking to either come back in or to reschedule the other half of my appointment so that the doctor could go over what they found on the ultra sound with me I’m just not sure if this is something that is standard and they always just go over the ultrasound or if something in particular was wrong and that’s why they want to go over it I did not get the voicemail until three days later so this whole time I never knew that I was asked to come back and they are closed for the restOf the weekend so now I am left to sit here worrying what could be wrong or if something at all is wrong for the next few