~ that is exactly what happenened to me last month. I went in on cd 15 for preop for surg the following day and I only had a few follies~ little bitties and there was no fluid saying any follicle had ruptured (ovulation) but when she sent me for a blood test for preop she threw in an lh draw just in case I was surging and o'ing right then (because I'd had several days of + opks and didnt want to do the surg if I was oing on my own, which isn't something I never do) and she couldn't tell because it was too early to show fluid.
she called me later and cancelled the surg and told me to get it on because I was oing on my own
Can you request a blood draw to check your prog levels?? at 7dpo (suspected o) it is most accurate and will tell you if you did or did not ovulate.
what day are you now?
also a couple cycles ago (medicated) it seemed I o'ed, got cross hairs, had a shift and then a few temps before af ff pulled my crosshairs and deemed it anovulatory. I think if I did o that cycle it wasn't strong at all.
I'm really hoping it happens soon for you Jezzy.