I laughed hard will it damage or rupture my spleen i am having pain in spleen area after the incident?

No amount or hardness of laughing will damage your spleen. You pain is more than likely of muscular origin. For healthy diet: http://www.choosemyplate.gov/., exercise 30 minutes/day, drink enough water daily so your urine is mostly colorless, have safe sex, no tobacco alcohol weed or street drugs. Get HPV vaccine. Wish you good health!

Unless spleen affected by another condition at the time it is not likely to have been involved. A musculoskeletal source for the pain appears likely, pain will get worse with movement involving muscles in the area, abdominal/ intercostal/ back. Keep laughing!