Is there still a chance of getting pregnant if you have sex after ovulation, like a day or two after? I'm still having some ovary pain.

Less likely but: Fertilization needs to occur within 12-24 hours after ovulation. After that time fertilization won't occur. Women with regular cycles often get one sided ovarian pain on ovulation, lasting 1-2 days.
A chance, but lower. After ovulation the egg can be fertilized for maybe 12 hours or so. Good wishes.