I can't stress enough on here how important it is for you to get an education first, to get financially stable and hopefully married before you even think about having children.
Moo has it right, parenting is much more then just being able to give your child love. Babies have needs, if they are formula fed(and would have to be formula fed since your body isn't even finished growing so i highly doubt you would be able to nurse), case's of formula are $46 and up, and as much as they eat,a case will only last a week and 1/2 or so.Then, you have to think, clothes cost a lot, especially since babies grow pretty fast and no to mention diapers, wipes, bottles, toys, and when they get big enough child care, crib and mattress, blankets, sheets, stroller, an infant car seat(and once over 22 lbs, a bigger car seat), a playpen, a change table, a sepperate dresser for the baby's clothes.. etc. There is much more you need for a baby. I must have spent almost $1000 just to get my son's room set up and that's not including what my parent's helped me out with. that number is also not including what I spend every month on my son. Myself, I'm 23 with an 11 month old and going back to school in the fall. Even thought I am financially stable at the moment its not even close to what I should be able to do with my son. I wish i had a college degree before I had my son, But then again I'm 9 years older then you are and have the maturity of a 30 year old.
You have your whole life ahead of you, you're only 14. You need to finish school and go to college and get yourself stable financially with a job before you even think about having a baby. Think about what you're going to miss out in your teen years.Parents have to make sacrifices to be a better parent, You wont be able to go and spend time with your friends because your friends will be in school, even on the weekend's, the baby will be on a schedule, so you can't spontaneously decide to go to the movies one night or go hang out at the mall , you wont be able to go to parties once you reach legal age for it, you wont be able to do anything but work and take care of your child.
If i were you, I'd shift my focus and desire some where else like getting involved in activities, getting good grades and just having fun with your friends.
I hate to say it, but your too young to really understand what it takes to be a parent.