Brown discharge with no heartbeat at 8 weeks hcg 53284 now at 10 weeks hcg is 85586 Can the ultrasound be wrong?

Brown discharge at 8 weeks, combined with a lack of a detectable heartbeat, can be concerning. However, the rise in hCG levels you mentioned suggests that the pregnancy may still be progressing, even if there are complications. Ultrasounds can sometimes provide inconclusive results, especially in early pregnancy, so it's possible for there to be variability in what is seen. It's essential to follow up with your healthcare provider for further evaluation and monitoring.