Pain during intercourse at vagina opening, came on gradually starting ~6 mos ago. pap smears/std screens negative. don't think it's yeast infection.

See a gynecologist: You must be examined and thoroughly evaluated to have this diagnosed and managed appropriately. Go soon and feel better.

See doc: There are other causes of pain at the vaginal opening. Sometimes it is a simple as recommending more foreplay (or using lubrication). Sometimes it is an infection or skin condition. Sometimes people need physical therapy (pelvic floor pt).