I am doing IUI with my doctor I did Clomid 50mg the first time, but no ovulation. Second time we did 100mg and on day 12 ultrasound everything looked well, went ahead with insemination. Finally took pregnancy test and got a negative, progesterone level was really low for blood work, my period never came. I finally had some light spotting, then just brown discharge for days 1 (day spotting) through day 10, took clomid 100mg and letrozole 5mg day 5 - 9. Intercourse on day 10 bright bleeding, light... very confused at what is happening... suppose to do ultrasound on day 12, what questions should I be asking my doctor, what could be happening here?