Pain in lower left abdomen when i ejaculate, 6 inches to the left of my belly button. a few seconds after ejaculations, the pain fades away gradually?

Possibly muscles?: Hi If it only happens when you ejaculate, it could be a strain of one of your lower abdominal muscles or of your muscles inside your pelvic floor. Ejaculation doesn't typically cause muscle strain but you may have gotten a strain form another physical activity like exercise and are just feeling it when you ejaculate. A little rest may help.