On Monday I took a pregnancy test and got a very faint positive, do that night I went and got a digital test and it clearly said pregnant 1-2 weeks. I took another one the next morning and it said the same thing. Then yesterday I went to the doctor to have a urine test through them and they said it was negative and to come back if I don't get my period. This morning I've had extremely light brown spotting that only shows up when I wipe. Has this ever happened to anyone else, is it still possible for me to be pregnant? Thanks