Aww congrats! I fell pregnant my senior year with my DS and he is now going to be 14 this year and the most amazing, smart, handsome young man ever! I was halfway or so through my pregnancy when I graduated school with my lil baby bean in my tummy. Be sure to schedule a prenatal appointment and start taking your vitamins. I waited nearly halfway through my pregnancy before I went... not smart at all. Take care of yourself, stay in school and everything will be ok! Good luck!
Side note: I wish I'd continued my schooling and went to college after graduating. If you are able to, be sure to do it! You'll be glad you did!