Still possibly Pregnant??

I found out October 12th that I was pregnant , ended up in the hospital October 18th for bleeding and was diagnosed with a threatened miscarriage , on my ultrasound they didn’t see anything the dr told me I was either too early or already miscarried and my HGC levels were 507 I was supposedly 6 weeks , well I’m still having symptoms and it seem like they’re progressing instead of going away , specially with changes in my boobs and eating habits and mood swings ...