True Faint BFP or HCG trigger shot?

You are definitely pregnant! The trigger shot has already left your system because it's been 13 days. When you received a negative hpt and then the next day a positive, that was an indicator that it was from your HCG building up. A lot of women gets positives starting at 5dp5dt and they are pregnant. Also, alot of women had positives at 6dp3dt which is equivalent to 4dp3dt. I also triggered with ovidrel on March 20th so I know what I'm talking about. Stop worrying, you are blessed!