Let me qualify this answer, assuming you are a teenager (which on second thought seems like a possibility).
In a healthy relationship both people get what they want and need. Of course each relationship is different and particularly in the teen-aged years this can be a little difficult.
Hopefully you can talk to your partner about what you want and need. Sometimes this means giving up a relationship when two people are not in the same place. This can be difficult, but this is the healthiest thing to do if you and your partner want different things. You shouldn't let yourself be pressured if you aren't ready.
That being said, sex is almost always an important part of adult romantic relationships.