Is running good while trying for baby will the sperm come out?

Exercise is good: I'm not sure whether you are male or female. Running is good exercise and being healthy. Increases the chance for a healthy baby. It should not decrease a man's sperm count as long as the testes do not get and stay over heated. Some of the sperm theoretically could come out of the vagina if a woman got up and ran immediately after ejaculation but this won't prevent pregnancy.