SCH worries..

This is my first baby and all seemed to be going well until last night when I went to the ER in severe pain with bleeding. (in fact, I'd had my first prenatal appointment a day before.) I thought for sure I had had a MC and cried silently during the ultrasound. I guess my tech felt bad for me and she broke the rules a bit to show me that my baby was indeed still alive. I almost wish she wouldn't have, because I began to feel a false reassurance. I was not prepared when the Dr came back and told me not to get my hopes up. I'm 8 weeks and a day as of today. Baby's heart was beating at 171 during the ultrasound last night, which is up significantly from what obgyn told me a day before (158.) The hemorrhage is 4 cm x 2.3 cm x 4.1 cm. Baby's sac is only 9.9 cm. I was told today by my mother that she had SCH with all of her children. I didn't know until today. She told me she was on 9 months of bed rest and nearly lost me several times. Multiple MCs, high risk pregnancies, etc. I'm just wondering what anyone else's experience with SCH is and what my chances might look like. I see my obgyn tomorrow and have been trying to take my mother's advice of bed rest, but no one I've spoken to has sounded too confident about my odds. which, realistically, I understand, but I wanted to hear personal experiences before I lose all hope.