5w6d empty sac

My lmp was may 2nd however I did have sex that morning so maybe that brought my period down earlier? Any-who I got a vvvfl on the 29th of may and got beta hcg blood work done on June 1st which came back at 34. I went to the er on the 3rd due to cramping beta hcg came back at 46 they told me follow up 2 days later for blood work and it came back as 107 I went back 3 days later and it was 436 on June 8th. I went and got a us on the 12th with a empty sac measuring 5w1d I went back a whole week later and empty sac measuring 5w6d 11mm I have to go back tm for another us I’m so scared 😢😢😢 so sadddd anybody have a similar story