I’m two days late , I’ve took a test but it was negative , took another one couple ours later , and I was pretty sure I saw the most faintest line but I’m now convinced it was line eyes . I’ve feeling nauseous after I eat/drink ,generally nauseous past couple days , had slight cramping / back pain , have been using HCG Strips , do I need to leave it longer to test or do I need proper pregnancy sticks ?