Hello girls, who on ultrasound can't see the embryo? The term is 5 wee…

Hello girls, who on ultrasound can't see the embryo? The term is 5 weeks and 4 days. Yesterday they told me that the fetal egg is empty, there is no embryo(( A control ultrasound in a week, but I want to go pay for it! The gynecologist said that the embryo could have dissolved ((( It's unbelievable to me, the fetal egg grows, last week was 5mm, and now already 9mm) They brought me to tears! The doctor insists that I take a hCG test, what should I do? I'm so afraid?