confused

just checking if anyone on this forum ever had this happen to them and what was the outcome. so my af was due on the 1/15 which I assume show up on time because i went to use the bathroom and there it was when I pee. however from then until this morning the only time I see anything is when I pee, nothing at all on pad not even spotting. also I notice vein are showing up all over my body, take pregnancy test they all say negative.