Did you have any spotting around CD 18 OR CD 19? I had some light brown spotting for one day really and it slacked off on the 19th. i had some bad pain on the 18th is was like i pulled a muscle in my lower abdomin it hurt to pull my self up out of bed. But it only lasted one day so i dont know what it was. I am going to test until monday or on thursday and if it is neg then i will retest if my AF doesnt show up. I am trying not to get my hopes up but i am defintiely keeping my spirits high and fingers crossed. Right now i am CD 25 and they only thing i am experiencing is heartburn and very mild cramping off and on.