When can I use an hpt after IUI/Ovidrel injection?

I tested at 11dpo (13 days past trigger) and got a real positive. It was faint because it detected 25miu and my blood draw was a 28. I called the nurse that morning because of the positive and they told me that the ovidrel would be completely out of my system by then. Good luck hun! I have a good feeling about your IUI!!! :) Best wishes!