Oh sayang, I know this is scary and uncertain right now. Please follow up closely with your doctor or go to the hospital if you have any bleeding or pain, don't wait. A few of us mums have been through similar situations where timing or positioning made it hard to detect a heartbeat early on, and some had good news at the repeat scan, but honestly, this one really needs your doctor's expertise and close monitoring, not just mum talk. The fact that your doctor wants a repeat in 2 weeks is good; they're being careful with you. Stay strong, and lean on your partner and close people around you right now. Fingers crossed for that miracle you're hoping for.