has anyone had an ultrasound this early

Ash • mother of 3 boys and 1 girl

I came to the hospital today for some pain and I could feel my BP is high they wanted to do an ultrasound bc I've had an ectopic before (I'm 5 weeks today) the ultrasound tech said she could see a gestational sac and maybe even a tiny yolk sac the dr came in and said we couldnt see anything but a sac on the ultrasound there was no heartbeat its prob a failed pregnancy or it could be early being this is my 4th baby I wanted to say that at 4 weeks and 6 days or 5 weeks you shouldn't see a heartbeat yet......has anyone else had an ultrasound this early?