Help! Somebody had something similar ?

Magda

My last period was July 14th. I supposed to have 9 weeks. 2 weeks ago they did an ultrasound and they saw the sac and the yolk sac. But no baby. Today the saw a little embryo but not fetal heart beat. My doctor said that the size of the embryo is just 6 weeks. The hcg is growing really good. Something like this happened to you ? You think the baby is ok ? Do I need another medical opinion ?