4. Keep away from drugs and alcohol: Many teen pregnancies are a result of them having unprotected intercourse when they are under the influence of drugs or drinks. Both of these substances spoil your judgement and make you foolishly impulsive
5. In case you end up making a mistake: In case you do end up committing an error, then get the morning after pill as soon as possible. It is most effective when you have the pill within a day of the intercourse in order to avoid getting pregnant.