Getting Pregnant - Signs of Pregnancy, Ovulation, Conception
This will give you a start, although you should have had a little sex education by now - to include the risks of getting diseases if you are not sure your partner is STD free. Also, before taking such a big step, you need to consider all that you give up in your own life and whether you are willing to do so.
Don't just get pregnant because 'everybody else is doing it', or think it's a way to get away from a home that stresses you out.
Think seriously about all the responsibilities.