Are my HCG levels low?

I went in for a follow up blood drop at 3w5d because my doctor thought my HCG level (78) at 3w3d may be low. I thought I was well within the normal range for that far along? Trying to not freak out but a little hard after two chemical pregnancies. Progesterone was 35.1 which seemed good? Can anyone throw some of their own encouraging stories my way? I'll have the new test results tomorrow.