6wks & 2 days HCG level is 52,000 is this normal?

My LMP was 6/18 but the ultrasound ensured me at 7 weeks tomorrow. My HCG Friday, at 6weeks 2 days was 52,000. Is that high? It seems high compared to other posts I’ve read. Also, at exactly 6 weeks they found a gestational sac, yolk sac & fetal pole but did not find a heartbeat. Please share your experiences and numbers. Also, should I be worried about no heartbeat? This is my rainbow baby after 6 years of trying & 3 years after my miscarriage ❤️🤰🏻🌈👼🏻🙏🏻