A visit to a family physician or pediatrician may be the first step. However, if you think that your child is in crisis and has had a previous suicide attempt, is threatening to harm herself, or you just have a "gut feeling," get your child help immediately. Do not wait. If needed, take your child to a pediatric emergency room.
Having a child who is depressed or is suicidal does not make you a bad parent or mean that you did anything to cause his/her pain. The best thing you can do is to get your child help and support him in his recovery.