have just done a hpt on day 12 on diui( 2days too early) it was a natural cycle apart from one hcg injection to help me on my way. had injection 2 weeks ago today. anyway did test at about 5 oclock it was a very very faint positive, so faint it was barely there. what does this mean? had reply to same topic on 2ww they say a line is a line!!. I'm not sure. can anyone help. have you ever had a pos that turned neg. maybe there is still a small amount of hcg from injection still left in me.