It's possible, but even when my cycle is short (last few months) I have O'd on day 14, then got AF on day 23/24 so LP is the only part that is short. Counting from last lot of pain I am only 5DPO, but that was CD 18 which is unusual for me. It's regularly CD 14. Nearly every month..... Oh well, I will know if I don't get AF within a week (allow extra time just incase I O'd late and because I never get +ve HPT's till I am a number of days overdue....for some reason my hormone levels are slow to start with). Thank you girls. I guess I just have to resolve myself to waiting it out and facing telling DH IF and when we cross that bridge and not worrying about it before I get there!