First ultrasound

Kristen

Is there a chance that baby’s positions are different when the doctors do ultrasound thats why they can’t get the right measurements? I am really worried because I thought i am already 8w+5d pregnant but my doctor measuring my baby right about 6 wks. I got my first hcg blood test and its 23,600 and doctor said this increase her concern for miscarriage because hcg that high she would’ve seen a little bit more than what she did on my ultrasound 😢