I was just wondering how things turned out for you. I'm on day 3 of positive OPKs, CD17. This is my first time normal and the rest of my stats read like yours. No thermal shift, etc.
I ended up Oing the day of 1st opk or second, then my thermal shift was so low that added to my confusion, Af arrived a few days late but didnt change my cycle much, this month i'm on 100 mg so fx i get my BFP. I didn't get a positive opk until this evening (was negative this morning) so i'm due to O soon (today or tomorrow) never been later then cd 15, going for U/S tomorrow so hopefully they can see what size follicle i have even if i do O by then.