Hi,
if you had the trigger shot, the positive could still be from that.
If you didn't have a trigger shot, then you could be pregnant (though it is quite unusual to test positive so early).
I am now 5 weeks pregnant. I got my first +ve 14 days after IUI.
Hope this is your month!
did you take an hcg trigger shot?
you can get false positives up to 14 days after the trigger depending on your dose.
mine was out of my system in 10 days (i tested negative the day before i tested positive(
but that's the only thing that may interfere with your test.
hopefully this is it for you!