Ladies I need your help !

Last week I completed a few pregnancy test L.A. the day before my period and got the lightest lines .. did a digital and it was positive I suffered a miscarriage in February and started spotting the day my period was supposed to arrive .. called my doctor he said to go to the ER I went , and my HCG was 9 and I continued to bleed and it became heavier .. at the ER they told me the pregnancy was not viable .. I walked away and bled until Sunday .. today our curiosity I took multiple tests and the lines are the dark and seem to be getting darker I am sooooo confused

Anyone had similar situations ??