Is this even possible?

Cait
I triggered 6000iu hcg on Sunday morning at 7 AM. I thought I'd like to test out the trigger so I tested today and it is negative. I assumed it was a bad test, so I tested with another type and it's still negative.
In the past I've had positives for up to 10 days with 5000iu. I attached a picture for your consideration. 
Last month I had a chemical pregnancy if that makes any difference. But I ovulated on Sunday/wee hours of Monday, confirmed by ultrasound and temps, so I'm 3DPO. I've never heard of the trigger leaving your system so quickly.