Blighted Ovum

Trisha • 30 years old. Two miscarriages, one rainbow baby. TTC #2.
Has anyone been told they had a blighted ovum that produced a baby a couple of weeks later? I went to my first appt yesterday at 8w6d and we couldn't see a baby and the sac was measuring at 6 weeks. I don't have much hope since the sack was measuring nearly 3 weeks behind but wanted to see if anyone had any similar stories that turned in to I guess a miracle.