One emotional impact of active sexual impact would be pregnancy, young ones just rush into this and don't think about the consequences, as a result they fare badly and end up being parents at such young age or get abortions.
STD and pregnancy can be one because teens aren’t able to take care of themselves of a baby. If a teen keeps a child then that’s a stressor it’s self but If she chooses to abort the fetus then she can have emotional scarring