its been a while, what was the outcome?
Im very sorry, but I am going to say something that you dont want to hear. Based on what you have said, your doctor is most likely correct.
With HCG levels over 10,000 you should be able to see a fetus and heartbeat. If just a "dilated yolk sac" was seen at levels of 10,000 this is a very bad sign and it also means that a fetus or heartbeat were not present. In general, when a yolk sac is larger than 6 mm this indicates an abnormal pregnancy (yolk sacs should grow to about 6mm and then fetus will begin to grow) and yours is close to 10 mm (I think you meant 10 mm rather than 10 cm).
Sometimes when a miscarriage is impeding, HCG levels can still raise or tapper off and traditional MC symptoms (heavy bleeding, cramps etc) may not be present for a few days or even longer.
I really hope things turn out for you but based on the information you have written its important to be realistic.
My experience with abnormal sac size is that most of the time it results in miscarriage. However, I have found a few stories where the sac size resolves and women go on to have a healthy baby...
This is my second pregnancy with an abnormal sac and abnormal hcg levels. I miscarried the first at 9 weeks. I'm now almost 8 weeks for this one and the doctors don't have any idea what to tell me since there is a strong heartbeat even though the sac is very small and my hcg is rising but not doubling. All we really can do is wait and see what happens and hope for the best.
good luck!
Im not really sure what to say..but if the bleeding has stopped it could have been from the pap for sure!! Your numbers are great i mean there going up so if theres a sac i would assume everything is ok!! Have you ever heard of a blighted ovum.? I dont really know i cant be of much help but im sure someone on here will be!! I just wanted to wish you good luck and i hope things turn out ok!