Being a sexual being is an awesome thing - but like anything in life, there are risks. 'Sexual health' means having pleasurable and safe sexual experiences. It's up to you to have sex in a way that reduces the chances of getting a sexually transmitted infection (STI) or having an unplanned pregnancy. Remember you are in charge of your body, your health and your decisions about sex.
But let's backtrack - sex doesn't happen in all of our relationships. A lot of relationships don't include any sex - like those with our family, friends and teachers. These relationships involve feelings but not any romance. Sexual relationships are a special thing. Some good qualities in sexual relationships are trust and intimacy. But different people want different things out of a relationship. Some people want trust and intimacy and other people just want the opportunity to have sex. Others want both or neither. Relationships take time to work out and you learn more and more as time goes by.