OPK and BBT

[Sunshine87]

Hi everyone! I'm new to TTC as this is my first cycle trying and my first cycle off the pill. I've been charting my temps and using OPK. I was positive on the OPK on CD16 and CD17. Today on CD 18 I have a drop in my bbt... What does that mean?

 

[k4th]

If you ov'd you'll probably get a temp rise tomorrow. It can happen 2-3 days after your positive opk

 

[maisybump]

i'd say you ov'd today you should have a rise tomorrow