Clomid + ovulation pain

I’m on cycle day 15 and was on clomid 50mg day 5-9. I feel as though I have been having ovulation pain today, but negative LH.. how long after ovulation pain did you actually ovulate on clomid? (TMI: has a lot of pressure in ovary region during sex for the first time ever last night. This is my first round of clomid)