I had IUI done 12 days ago, with 250mcg Ovidrel trigger 13 days ago. I have tested the past two mornings (12 and 13 days past trigger), with the hpt coming back with a very faint positive (so faint that my DH did not see the first one at a glance). Today it was no darker/lighter than yesterdays. I am using a sensitive EPT test, and am wondering if this test can still be detecting the trigger shot. I don't 'officially test' for 3 more days, but am going crazy now and would like to know how others have tested with these results. Thanks!