Emergency ultrasound tomorrow

I need lots if prayers right now. I've been bleeding since Friday from light to moderate. Never heavy. No pain. Saw doc today said it could be a miscarriage. They are giving me an emergency ultrasound tomorrow evening. I'm afraid I'm on a see the ultrasound and there will be a dead baby there or something will be wrong with my baby. What scares me the most is they use ultrasound and there's no baby there. I'm a mess. I've been ttc for years now. I'm just so afraid and I feel so alone.