i dont know if this helps but mine was called a missed m/c. When we went for our 9 week scan the sac only measured 5 weeeks and there was a yoke, Hormone level 8500. But when we went back a week later the scan showed the sac had grown to 6 weeks but there was nothing inside and hormone levels were 6000ish. So i never had a heart beat either. I wonder if mine was a blighted Ovem??/
I hope i havent confused you.