Hi Gecko, I used to have a pretty normal AF (when it did decide to show) , but clomid has made my AF really light and spotting for about 3-5 days before for the first few cycles. A few girls here have said they experienced the same thing.
My cycles went from 100+ days to 80 and down to 40 days after I came off the pill. Since clomid my cycles are now 32 days
HTH