What is going on?

Brittany

I was approximately 9 weeks pregnant and had a miscarriage last month, July 3rd. I haven’t had a period since my miscarriage. I started having really bad nausea on Saturday, 8/14/21. On Tuesday, 8/17/21, I decided to take a pregnancy test. It was positive. I work in a clinic so I had my HCG level checked and it’s 31,735. The highest my numbers ever got last time before I miscarried was 9,176. I’m concerned that my number is so high and I just found out I’m pregnant and have no LMP to go off of. Maybe I’m over thinking? What are your thoughts?