HCG level in early pregnancy ...

Morgan • 1 molar pregnancy 1/1/17, 1 beautiful baby boy 1/14/18, one blighted ovum 9/21/18. Pregnant with baby#2 10/20/2019
Just found out I’m pregnant past few days. I got blood work yesterday at 3 weeks 4 days and my hcg came back 27. And progesterone is good at 27.5. 
I’ve had two miscarriages so I’m petrified that hcg is a little low. I get another draw tomorrow so hopefully they double!