i had a positive opk for 2 days and i was testing with opk for about a week before that. 13 days after i had a slight bleed and have been reading up and alot of women have said that their 1st af was very light so i wonder if this was my af. it lasted 3 days and i didnt need a panty liner it was literally spotting but the dates work out right. i feel really stupid now!!! lol x sylvia x