I have another thread on this but getting a bit desperate so re-posting here. Did an IUI last Sunday 7th. Had HCG trigger shot (lowest dose of 250) on Saturday 6th at 10am. I just did a clear- blue pregnancy test and got a very very faint positive. AF is due on Sunday so I am on CD 22, 8.5 days post trigger shot and 7.5 days post IUI. I think I ovulated on either 6th or 7th so would be 7.5/8.5 DPO. Any views on whether this is a real positive or due the remnants of the trigger shot?