Anyone have HCG levels fluctuate in early pregnancy but end up with a healthy pregnancy?

Alyssa

I had a positive test on Thursday night. Friday my Dr had me go for blood work and my HCG came back at 971. Monday i went again and she just called saying it dropped to 800. I am 5 weeks and 2 days today. Last year I had a miscarriage and started bleeding at 5 weeks and 4 days. I'm really worried this is the beginning of another miscarriage. Anyone have their HCG level drop then rise again but end up with a healthy pregnancy?