Earliest you’ve gotten a positive?

Stevee

I went to the hospital and tested positive (urine test) and then had blood work done and my hcg levels tested at 24. Based on my last period (June 20th), that puts me at 3 weeks pregnant. Has anyone ever tested positive on a upriver test before so early? I’m just wondering if maybe I’m further along than I’m calculating? The earliest I’ve ever heard of being detected with a urine test was 5-6 weeks.