I’m nervous

Marcy

July 25 I had a negative urine test and negative hcg test. Aug 13th I Went to the emergency room I was having pain. I thought it was kidney stones. They told me I was pregnant and my hcg level was 60. They said to get blood work done. I did my level is only 66 after a week. What does this mean? I’m getting nervous. I already had a miscarriage In March.