BBT charting not that useful??

[mlyn26]

Yes i can see this. This last month i got a positive OPK on thurs, neg on fri (so assumed this was O day) but did a little fall back rise so FF didn't have me O until the Monday!! My LP is always the same which made me know i and OPK was right when my period came smack bang on time according to OPK but would have been only 8 day LP if FF was right.

 

[xxBubsxx]

Thanks for sharing that mlyn. That makes sense. I wonder if the temp spike just takes a bit longer for some of us after we've ovulated. I'm glad I'm not the only one to experience this! I finally got a rise in temp yesterday but when I put in yesterday's temperature FF put my ov date as Monday. Kinda weird.