I'm on cd 19 and I have never been able to properly pinpoint my ov tbh. I'd say it happened on cd 16 or 17 though because I have a 30 to 31 day cycle generally. So it's a 2ww for me after giving it three red hot attempts of bding on cd 13, 16 and 18. So I suppose you and I are on the same page for now!
I feel a little buzzy and heavy down low in my pelvis which was a sign for me last time but wonder if it's all in my head or if I've overdone it on normal milk instead of the lactose free stuff I should be drinking. I felt it this early last time though. Aurgh here we go again! The madness... hehe