Hi good day. My lmp was last march 6,2017. I had an iui on may 20.on april 1 i started to have spotting.i took hpt on april 3 turned out to be faintly positive.i repeated my hpt on april 5 and became more darker second line and its positive.but my spotting continued.there s even minimal blood darkest in color coming out only when i pee.i started taking duphaston every 6hrs and isoxilan every 6hrs too.but until now april 10 i still have light spotting only when i pee.im worried for my pregnancy. Whats causing my spotting? I dont have abdominal cramps..please advise and enlighten me doctors. Thank u.