I am posting this pic to let you know how well these tests work. I am currently in process of a miscarriage so it was an unsuccessful pg but thought you might like to know how sensitive these tests are. I took this test and this is how dark it was. Went to the dr for bleeding that same day and my hcg was only 13!!! The test was this dark at only 13 miu! And they are only $1 at WM and DG. I know what Ill be using here on out but thought you might like to know :-)