Dark lines after bleeding

Hi I was bleeding at 4 weeks 3 days exactly when my period was due. No cramps, no clots. Now it's 4 days since bleeding I took a couple tests just to see because I feel pregnant. Before bleeding the tests were vvvvvfl now after bleeding they are dark and digital says 2-3 weeks. If I had a miscarriage would my tests be getting darker? Has anyone had bleeding and still be pregnant? I can't get into my dr until Wednesday.