Stop writing like a kid. I hate that.
I have no idea why anyone would want to get married in this day and age- and I'm married. My advice is find a great guy, buy a big poufy dress, have a lovely party with all your friends, but don't sign any papers. We live too long to realistically think we will spend our life with only one person. You'll have plenty of time to date when you get away from home. Personally, I think 15 is old enough to date if a teen shows signs of common sense, but I'm not your parent. As to pregnancy (and STD's), you are in control of that if you chose to be - and as a woman - you
must take the responsibility because odds are you will be the one left holding the baby.