Hey honey! it's good to know that you are pregnant, take care of yourself. But, at 16!!! haven't you consult your mummy or family members or you boyfriend about this? It's a good new and everyone is congratulating you but it's matter of concern for you still.
I suggest to take the help of your mom. Whatever be her reaction, but just inform her about this condition and make a call to your gynecologist or a doctor for full & proper check-up to avoid any complications. If you want to consider it then it's good but take full precautions for it.
All the best & Good luck....
Learn more about unplanned pregnancy at "Youroptions".