Megan: Some threads are basically encouraging you to go with what the world/media says. Seventeen- you are old enough to decide, do what feels right, my body - my decision, its legal, love the one you are with!!
Look at the world!! Look at women!! Are they happier, more inner peace, more joy, more contentment??? Look at the divorce rate/adultery/number of sexual partners before marriage!!! We have so many STD's and death - AIDS!! Sex has become just another past time on a date!! Instead of savoring, anticipating, enduring self control, relishing the future and waiting until your wedding night, its just another wham bam, thank you, ma'm!
Experience with different men, etc., does not make you a better lover. Real love and commitment make you are great lover!! Could you imagine sharing your most private/sensual part with a man and then in a few months, a few years, break up. Most often, a 19yr old man is not ready for a serious commitment, not all 19yr old men, but most!! Then, whenever you find a man who truly respects you and LOVES every part of your beautiful body, you have to tell him that some other man, or men, have seen and touched that most private/sensual part!! Having sex does not "grow" a relationship, it doesn't take it to the next "level", etc., without commitment --- it is just another fun & wild thing to do on a friday night!!
Real love waits!!