Thanks ladies.
No not my appendix as its the left side. Ovary pain is nothing unusual for me but this is much more painful then my usual ovary pain. But today is ovulation day. I can't even stand to DTD (this is day2 almost day3 of this pain although its getting worse) or go to the toilet (apart from a wee thats alright) if it wasn't in my ovary region so completely I would think a kidney stone. If I knew it would go tomorrow I would put up with it. Also I guess as its my left side (I am missing my bits on the right side) I guess I am so completely aware of every twing and niggle. I am hoping its the corpus luteum buldge thing. That would explain it if it gets bad some months and not others.