HCG issues 😥 worried

Sha
My HCG wasn't doubling correctly. It went from 2400 to 3700 to 4700 every 2 days. The doctor thinks it's an unhealthy pregnant and should not be continued. I asked that we do one more test. And the latest, it went from 4700 to 7300. So it's going up. I am around maybe 6 weeks now. I don't know what to think? Could it be ectopic? I have no pain or cramping. But also have no other symptoms. Only very sore breasts.Â