Asking for a friend ... slow hcg risers

My friend has experienced some bleeding and clotting. She went to the ER the ER told her miscarriage. Almost 3 weeks later her hcg is still rising. She doesnt have a dr appointment till next week with her doctor. I wanna know how many of you ladies had slow rising hcg. Bled quite a bit in the beginning. And still had a successful pregnancy . She is losing all hope and believes shes having a blighted ovum.