Hcg levels???

Tiana

So I’ve had my hcg levels looked at and the first one was 96 but the second one was 170 2 days apart. They’ve scheduled an ultrasound to see where i am but I’m scared that they aren’t gonna see anything. :/ hcg is putting me at 4-5 weeks but date of last period puts me at 6. Anyone ever have this happen and turn out good?