HCG numbers?

Kayley

Went to the Er for bleeding

Based on temping I should have been 4 weeks 6 days

Ultrasound showed no sack.

HCG was 990

2 days later at about 44 hours difference it was 1660

When i asked if I was miscarrying his response was “not yet”

Waiting on OBGYN to get back to me

Any advice/hope?