Hello, I Received My First Trimester Bloods, And I Am

Hello,

I received my first trimester bloods, and I am trying to assess if there was a chromosomal risk based on the results.

I did not get the accompanying scan as I miscarried a four days after the blood test at 13.0 weeks (on the day of my booked scan).

Gestational Age: 12w 3 d
Free B-HCG: 4.75 U/L
PAPP - A: 2.72 U/L

I found easy calculator.com which converted the MoM but I am not sure it is correct etc.

Is the Free B-HCG really low?

Thank you, really appreciate any insights!