I am sorry to hear about your miscarriage. I'd go back to your Dr if your worried. A rising HCG level would indicate something is still growing (weather thats bub or just some placental tissue) Is your bleeding lighter then a period? And with more physical pain? How far along were you at the scan? I had very light bleeding (it was pink and mucousy) and nothing could be seen on my scan at 5.5weeks. They said it was a complete miscarriage and the bleeding was light due to the early gestation. They said I'd passed everything but almost a month later it was confirmed my pregnancy was ectopic and all I'd passed was some uterine lining. I'm sure its ok but I'd still get checked out incase there is something left behind or your pregnancy is progressing normally just the scan was done to early. Thinking of you