so AF came April 27 through the 30th. I usually have a 28 day cycle. I started testing with opks cd8 and it was low. tested on cd9 in the morning and it was low. then around for 7pm i had solid smiley face.... I had a few other test holders so I tried another one on cd10 and it was low ... tested twice that day and it was low... so today cd11 I tested when I got home from work and it was solid smiley face again... so I thought maybe I have to wait after 48 hours.. so I waited until the solid smiley went off on my first test. tested again just a few minutes ago and its another solid smiley. I'm really confused.... has this happened to anyone else?