Hcg levels during week 5

Ashlee
I know I'm a little paranoid right now but I've had a blighted ovum before and my husband and I have been trying for a baby for a while. I am now 5w6 and I'm just curious on hcg levels. At 5w2 my levels were 1801 and at 5w4 they were 3149. Is that a good increase in levels? Thank you for any info. Like I said, I'm paranoid.