I really need someones opinion can anyone help me?

i dont know where my question went i just started using this tonight but my name is Andie and im 5-6 weeks pregnant and today i woke up with bleeding,slight cramping,and clots so i rushed to the er.They did an ultrasound and the fetus was there and the yok sac was normal but i had an elongated sac and it was low...there was no heartbeat yet but they said im really early to tell but they said it could be a start of a miscarriage but they are not sure so i have to go to my doctor to get a 2nd u/s.but with the bleeding and cramping it makes me worry but im praying everything is ok and hopefully it turns around but if anyone has gone through this o knows whats going on plz let me kno thank you!