Ob. Appt hcg

Jessica
So I really need help. My last period was April. 6th. I'm suppose to be around 5 weeks. I went and got my blood drawn. My levels were 1628. I just called to see if I can get my blood drawn again, she said if there's no bleeding there's no reason to see if your insurance would take it. She said I'm about 2 to 3 weeks according to my levels. But how? I'm so confused. I go June 3rd for my ultrasound. And I've seen a lot of ladies on here get there progesterone checked. Mine don't do that.