🤷Low HCG??

I'm in such a panic mode now. LMP 10-12-19. 1st HCG levels was 16 @12dpo-3+5 it went up to 137 @16dpo-4+2 I've had bleeding off & on since had beta draw yesterday @6+2 it was only 5423. It doesn't even add up to my doctor's office HCG chart.

I feel like this is way to low for my Pregnancy. Everyone's beta's seem way higher than mine, what could be the problem or is there a problem??? Can someone Please give me some insight Please I'm Freaking out Here!!!!!