HELP! low hcg levels but normal progesterone

Samantha
Stressing ! I am 5weeks 3days and I have a vaginal ultrasound and all that could be seen was gestational sac. My first blood draw was yesterday. M hormone level was 933 (which they said was low) and my progesterone was normal. I go for my second blood draw tomorrow but am worried that there's no baby with a "low" hcg level! Anybody been in a similar boat ?