Any dr there???i am under iui treatment.....?

hi .my huby counts was very less...its like count-8 million n motility was 70% so dr adviced me to take iui treatment..last month it was failed...but this month again they did iui treatment....i ovulated on 16th day of my periods but that time i got heavy bleeding dnt know y...i got bleeding on 12th day to 18th day of my periods..y is it so???whther i will pregnant this month??chances r there???they did iui treatment when i it was bleeding