blessedone, actually now only charting 2nd mth, last mth very zhun but I didnt use OPK so mistook fertile window (as I was using estimates) and ended up O late I didnt even know till BBT showed I've O late, by then fertile window over and I didnt do my BD.... This mth I very hard working, chart everything, use everything from OPK, Preseed, BBT, CM and check Cervix position, BD pre and post O and also take extra things like Magnesium and Vit B6 to increase progesterone cause last mth notice my temp all very low, maybe progesterone level low, so I try natural remedy first this mth. hehehe.....one time go all out whack hard hard see how lor......at least I know I tried my best. If still nothing happens maybe I menopause already......lolz....