U need to ask yourself, do you want a baby, or do u want to be a mother?
Theres alot more to babys than you can ever imagine. Trust me, I have a 5 month old.
I think its great that u feel u can look after the baby. But can you support your baby? There extremley expensive.
You may have thought about all of this already, but a baby changes everything, from what u watch on tv, to the friends u hang out with.
Why would the father only see the baby once a year, if u did become preg.?
Because in my oppinion, it is aslot easier to look after a baby with 2 parents present. Although it is extremely do-able as a single parent, it can be alot more stressfull.
I would advise u wait until you have finished school, and get some qualifications.
But then I dont know u personally, and dont know your life style. So it would be what u think is best, and whether you think you can raise a baby saftley, in your enviroment.
Good luck :)