12 days past trigger still getting postive pregnancy test?

Sue
Iam 12 days past trigger and 10 days past <a href="https://glowing.com/glow-fertility-program">iui</a> Iam still getting postive pregnancy test does that mean Iam pregnant ? Does anybody know when trigger leaves your body ? This is so frustrating because I don't know if this is bfp does anybody know?