Steph I've had to have a second blood test to check my hcg too. Mine was around 150 at 5 wks (based on my 32d cycle). Which is in the normal range.
Theres a helpful summary of normal ranges on the above page.
But, my doc entered my due date based on a 28d cycle, which made it look like I'm 6 wks and with low levels. So they've repeated the test and I should get a call from the doc shortly.
So your levels look quite good to me! My doc was great and v reassuring. She said as long as it keeps going up, the value is less important.