hi, first of all im really confused with all the codes... lol what is af??? and these other codes? n e ways.. my hubby and i have been ttc lol did u used that right? and i think i ovulated on 1-8 because my tests were positive 3 days in a row and on the 8th i had really bad cramping so we had sex that night. my period is due on the 21st but when we will start getting symptoms if i am preggo?? i have headaches everyday but thats it and i have a cold so thats prob what is causing the headaches. i also have been having a hard time sleeping but im sure its because i have so much on my mind...any feedback will help... thanx :)