Beta HCG

Ma

I found out I was pregnant on 12/10 (8 days before period was suppose to show). I got hcg blood test done on 12/11 levels were at 24. Got it redrawn on 12/14 it was 163. I asked my OB office to order it again cause I’ve been having period like cramps. Which I know is normal but I freaked myself out. I got it done at 2am (work in the hospital) and it jumped up to 5,079. I know it’s suppose to double within 48-72 hours but to jump this much in a week! Anyone have it jump like this? I’m glad it is and don’t want to change it but I’m curious.

Also I should only be about 3-4 weeks according to my last period November 19 and ended on November 23.