Missed ovulation? Help!

I was supposed to ovulate between Wednesday and Friday. Took one lh test a day till Tuesday then started with two a day. I have not had a surge yet! On Friday I had some darker lines, but not dark enough to make me question them. Saturday they were a lot lighter. Today they were darker again but not close to positive. I don't know what to think. Any opinions? I haven't been doing bbt in an effort to not be too stressed or think to much and it's not working! Typically after I ovulate the test line in non existent.