LATE 3 DAYS

Sophia
AF is late!!!! 3 days today.... no cramps like i normally do. No spotting. Boobs sore as hell though....And im.not sure if I should test just yet. Could be a false alarm. :-( it has happened b4 and it's soooooo depressing. What do u ladies think should I wait til Monday to test or do it tmrw if AF doesn't show up?