Any success stories with Subchorionic hemorrhage?

Alexis • 3 year old Chloe💖 11/15/15 & Jacob 💙 3-5-19

I’m currently due March 13, 2020 but at my last OB appointment there is a sac no baby. I started bleeding and I was told I have a subchorionic hemorrhage. They are saying IF they see a baby in about a week, they’ll have to push my due date back. Otherwise if not I don’t have a viable pregnancy. Please tell me someone has had a similar story? Looking for some hope here🙏🏾 ( they are saying the sac is measuring at about 7 weeks instead of 9)