Potentially Blighted Ovum

My doctor said I potentially may be experiencing a failed pregnancy due to a blighted ovum. They monitored my blood work every two days and my Hcg levels are doubling. My progesterone is a 16.6 which she said was good. She’s concerned because my Hcg levels are WAY high, and the gestational sac was measuring at 5 weeks with presence of a yolk sac, so I have my repeat ultrasound on Monday and I’m so hoping we have a heart beat. Has anybody had a similar experience?