Low HCG level..week 6?

Hi everyone! I tested positive for the first time ever (!!) and was told by other ladies on Glow that I’m 6 weeks pregnant since the first day of my last period was January 18th.

I also got a blood test done yesterday to confirm but I’m worried about how low my hCG level is:

According to the chart my healthcare provider sent with my results, my hCG level is 1-2 weeks instead of 6 weeks.

The earliest they would schedule me for an ultrasound is March 22nd... I’m wondering if I should push for an earlier appt. I’m pretty worried since this is my first pregnancy, and I don’t know if such a low level is normal.