when u join ff because theyve no info about u the first time (well everytime if u can)u need to help them along, i know on cd8 u diidnt av ewcm/watery ,but theyve done this cos after this temp uv had higher temps,so the software thinks u O, they did it 2me exact same thing first time, and it was cd8,i was in all of a panic thought id totally missed my fertilite days,but after the days went on n i was doin opk so recorded pos opk on cd14-15 ,ewcm,plus a had a hugh temp dip, so i think u might be still waiting to O hun,have u got any opk? if ur on cd17 now? it wud prob be 2moro leaving a lp of 10days,but dont panic everyone O later (theres 5 days difference from the first O days 4me!) and this is wot makes ur cycle longer, it does get easier when uv a few charts but u defo need to help with there data..IF u can hun x x x