Bleeding with clots is not a good sign, imo. It doesn't absolutely mean miscarriage, but I would be concerned. Were you able to leave a voice message for your doctor? If it is a miscarriage, there isn't anything anyone can do, unfortunately. I'd suggest that if the bleeding becomes really heavy, like you are filling a pad in an hour, then you need to go back to the er. I'm sorry you're going thru this and just wish you could speak with your doctor.