Just means you probably haven't OVd yet. I got little mini LH surges with nearly but not quite positive opks two or three times before I actually OVd. I ran out of opks waiting but amusingly after all that time that was the lucky cycle! Glad the head is vaguely supportive Antoniou. Shaft your HOD as much as you can, sounds like he/she deserves a lesson being taught to them. SMT burned done bridges with me recently & it's bitten them on the backside now. Had a sly chuckle to myself, what goes around & all that.