Zeri - Well, I had some O pains on CD14 (and we BDed that morning)....so I was hoping that it was either the CD12 or the CD14. I am really hoping it wasn't as late as CD16 because then we missed it

I didn't put it on my chart (or maybe it disappeared), but I had a neg OPK on CD16 and so I stopped messing with them.
I think the + on CD10 was likely an attempt. And I'm hoping the 3 days of positive was me catching the rise, peak, and fall.
Given that this is cycle #1, I really have no clue when I Oed. I did notice that I was pretty watery up to about Cd 14/15 and now it's gone pretty sticky and dry.
DH was pretty worn out from the 4 attempts this month.....but next month I am going to try to push him to go one more time. Or we'll try SMEP and I'll really wear him out.
Ah man....I really hope it wasn't CD16

I have no clue about my cycles...but they used to be 28-30 days pre-BCP. So an O on CD16 either means my cycles have gone really long or I have a crap LP.