Worried HCG levels ain’t high enough 😕

Emma • 👧🏻👼🏻👦🏻👶🏻 👼🏻👼🏻👼🏻👼🏻hoping for another rainbow baby making me a mum of 3 hopefully 4 🙏🏼🤞🏼💕💕

16DPO/4 weeks 2days Pregnant. I had my blood drawn yesterday and HCG came back at 45 should I be worried?