Just face it, its gonna hurt the first time. For some it might not but for alot of women it hurts quite a lot. My first time was when I was 18, and it hurt so bad. Try being on top, as that worked better for me.. then you have control of how deep and how fast it goes in... best wishes to ya!
Don't forget to use birth control or you might get pregnant even if does not brake it but does ejacuate on the entrance of your vagina.
well to answer your question that reason it hurts cause your hymen hasnt been broken. and if you do dont it it well be broken and you well bleed(but not alot) BUT AFTER THAT HYMEN is broken you should have a good preasure and enjoy it but you should di it when your really comfortable and ready hope this help you