Girls, please help me, has anyone had a similar situation? A week ago …

Girls, please help me, has anyone had a similar situation? A week ago they said it was 5 weeks and that the pregnancy was frozen because the CRL was only 4 mm (not corresponding to the term) and there was no heartbeat, I decided to wait another week today I did an ultrasound, there is also no heartbeat but the CRL is now 6.5 weeks, the term is 6 weeks (according to another ultrasound technician), I got confused, they keep telling me that it's urgent to do a cleaning but I don't want to rush, how long can I still go on for? Is there any hope that the heartbeat will appear? ? The terms are set by the CRL and according to the M should