hey hun, i had my daughter when i was 19 years old, not planned. but shes the best thing that happened to me ( other then my OH)
i think that if you think that you are ready, can cope, in a stable relationship, and financial stable ( because a baby cost alot of money) you should go for it.
just remember that babies, only stay babies, for a short period of time ( if your fixated on the idea of a little baby)!
my LO was only born the other day (in my eyes) and shes already a little lady - and this is where the hard work is starting!
you said "but just cant help thinking that i don't want to make a mistake" !
it sounds like you may have a little bit of doubt hun. why don't you take time to think about it more?
i wish you all the best hun, and hope you make the right decision for you, and not for anyone else xxxx