i temp and use OPK's
since this is my 5th cycle, i'm starting to really learn my body now....my opk's never go dark until literally the day of ovulation, or maybe just before....but i do get a temp dip on the day of O, so I've learned to look out for that...
sadly we missed the bd the day before o, due to work constraints, but we did it, two days before O and the day of O and the morning after, just in case it was a little late.
I really am thinking of investing in a fertility monitor, just to back up my results...OPK's just aren't reliable enough for me...
for anyone not using opk's or temping, i would definitely recommend it, i didn't realize I o'd late until I started using them, was bding on cycle days 13,14 15 before...but then i realized I didn't o until about cycle day 17 after i started charting! eeeek, months wasted!
oh and.....if your counting back 14 days from end of cycle, i wouldnt advise it, my LP is 12 days, 13 at best....so thats another good way to miss the big o day!
it's all so complicated