HCG levels

Megan

I had my blood drawn today to check my HCG levels. I am right around 4 weeks and my levels were only at 33. My levels when I was pregnant with my daughter at 4 weeks were over 80. I’ve heard that it doesn’t matter where they start as long as they double every 48 hours, true? Did anyone else have low levels to begin with? Someone please help calm me down. Hugs! ❤️