I will add one caveat: becoming (or making someone) pregnant CAN have permanent, life-changing, psychological effects for some people along all possible paths. You can be happy, sad, or have mixed feelings about abortion, adoption, or parenting. It just hits people differently. Even a pregnancy scare that doesn't turn out to be true can have a big impact. It's a life event. As the post suggests, a supportive environment helps make this a learning experience and not a trauma.
Also, want to be a hero? Support a friend anywhere along any of these life paths. Sometimes you might be the only help they have.