In my personal opinion, I think the only factors you need to conider are
A) Is your body mature enough to handle such a strenuous activity, and all the changes that come with it
B) Are you okay with the possibility of what may occur as a result of it? I.E. STDs (check for those first, for all our sakes), childbirth, etc.
C) Are YOU ready? Does it feel "right?" Will you be okay when the dust settles and you're no longer a virgin?
Think about it. Think about it for a good, long while, really consider everything. This is kind of a big deal, and you should never take sex lightly. So just keep this in mind.