HCG Levels Before 1st Ultrasound

Looking for your numbers here and any similar stories with outcomes.

Spotted Tuesday, got sent for a 48 hour test. 17400 on Tuesday and 18100 on Thursday. A dreaded slow rise. No provider was available but the nurse was kind enough to answer my call and give me the numbers without interpretation. I could be anywhere from 6-8 weeks, but my last period puts me at 8 weeks 3 days. I ovulated late in my cycle.

My ultrasound isn’t for 4 days and I need some real life stories, good or bad!