HCG is rising slowly, and progesterone is still declining. Is it a missed miscarriage?

Patient's question:

At 50 days pregnant, the ultrasound shows a gestational sac without a fetal pole or heartbeat. Is there still any significance in continuing the pregnancy? Thank you

Doctor's answer:

Analysis of the condition: The germinal sac usually appears around 6 weeks. Since it hasn't appeared by day 50, it is still recommended to wait another week for pregnancy. Advice: If the germinal sac still hasn't appeared after another week, then it would be advisable to give up.