If a boy and a girl have sexual intercourse the girl can get pregnant. The first sign that a girl may be pregnant is that her period does not start when she expects it to. If this happens then it is very important to see a doctor or talk to some other adult as soon as possible. Contraception can be used to prevent pregnancy occurring when a boy and girl have sexual intercourse. Some contraceptives, like the contraceptive pill, are used by girls.
Boys can use condoms.
Condoms also prevent sexually transmitted infections from being passed from an infected person to another person during sexual intercourse. Help and Advice Puberty is a time when you are going through many emotional and physical changes. There may be times when you feel concerned about what is happening to you or how you feel. It can be really hard to do, but it can really help to talk to other people. It can be really helpful to talk to your parents or guardian.