Can you wear tampons In water and not leak I'm scared il leak?

Actually, it depends on the tampon type. Being a swimmer, it is difficult with tampons because certain strokes will result in causing the tampon to be pushed out. Take for example, breaststroke. I suggest wearing a tampon that is larger than your normal one if you are a swimmer, if it is just for fun, then a normal one will do. Otherwise, just stay out of the water for that time period.