Is normal for doctors not to see anything at 5 weeks

Jesira
Ugh so I did go to the hospital like 4 days ago n today I had to come back for more blood work they didn't say anything was wrong just that nothing showed up as of yet n I just got blood taken to see if my Hcg went up im worried ugh 
They also wanna do another ultra sound today I opted not to until I see my fun at the end of this month I don't wanna hear any bad news