I am currently 4 days late (I am typically on time) and 2 days ago I took 2 cheapies that came out with a vvvfl (see pic) with in time frame. Yesterday I took a digital and it said not pregnant (I now know digital tests may require higher hcg levels). Today I took a cheapie and no line. What is happening? My doctor said to wait a week to test again but not sure what's going on with my body. Is it possible I may be having a chemical miscarriage?