Hcg trigger shot or BFP?

I took a Hcg trigger shot(10,000) 13 days ago. I was super anxious and took a test this morning FMU. Is it possible for the trigger shot to be showing this much on a pregnancy test. I have called my doctor and scheduled a blood test which is two days away. Anybody have the trigger shot in their system 13 days after ? I am super anxious..