Ultrasound

Yesterday I went to the er to make sure baby was ok I get paranoid due to last pregnancy ending in mc. I got a ultrasound and blood work done. When I went there was nothing wrong with me I went just to make sure my peanut was doing nothing fine. When they did the ultrasound which was when I was 5w 6d they said they only seen the sac but my hcg hormones levels was high which was good my next ultrasound is at 7w and I'm scared had this happened to anybody else and things turned out fine.