CRL too small and no heartbeat at 7+w means miscarriage?

I went for a checkup at 7w6d, had an abdominal ultrasound and the doctor says the crl is too small for this gestational age, it’s only the size of a 6w+, plus he could not detect a heartbeat. He concluded this as a miscarriage and offered options to expel the tissues out or to wait for natural expulsion. we decided to take the natural route and also wait for another 10 days for another check, hoping for a miracle. Anyone has similar experience but the pregnancy still went on fine? #advicepls