found a mass in my uterus. a molar pregnancy or...?

I went in for an ultrasound on Monday (8weeks, 4days) and got to hear a healthy heartbeat as well as see my baby. When I met with the Dr. they stated there was an item of concern in my ultrasound - they found a mass in my uterus. I asked if it could simply be a cyst and was told no, it is much more significant than that and they told me it was solid. They said they thought it could be a molar pregnancy. They took blood for an HCG test which came back at 195,844. They said this was too high and they are sending me to a specialist because they think it's a molar pregnancy. I have no symptoms; no morning sickness, nausea, bleeding, etc. I know the HCG level is high but still shows in the normal range and there was no comparitive done to see how they are increasing. What are the other possibilities?