Need some uplifting!!!

I just transferred my 4 AA fresh 5 day transfer on Monday. I told myself I was going to wait until beta day (next Monday) to test. Welllllll that didn’t happen. I tested this morning (not first urine) and see the faintest positive line - it is day 3. What are the odds this is actually pregnancy vs the trigger shot getting out of my system? I triggered last Monday 2/23. Thanks!!!🙏