Can you have a life and a baby? ABSOLUTELY! How do you think all the other mothers of this world live? They don't die or mutate because they have children -- they just have MORE to their lives, it's a good thing.
What if you suck at being a mum? Well, that goes for anything, at any time of your life, even if you were 35. What if you get hit by a car? What if you'll be a bad wife? What if you're a bad friend? Sometimes you just gotta risk it, and try your best at something.
What if you regret it? First give birth to the bub, and then tell me how you feel about this question lol.
What if you never finish school? Well, that's only if you don't try and you don't go to classes...
What if your life changes completely? It's life, life changes all the time, whether you have a baby or not -- with a baby, 99/100 times if not way more the change is radically positive.
Would you still be able to go out and have fun sometimes? What do you think babysitters are for? Parents? Friends? Relatives? Do you think the other mothers sit inside their four walls and not go out? Well some don't, but most do, otherwise they'd go insane just like any other person.
Is everything going to be okay? Only if you believe it will be, only if you trust and rely on God.
Can teen parents be happy? Why can't they be? I for one am happy, and I had my son when I first hit 17. My life hasn't ended -- I still sometimes go out, I've got a year of uni left, and I'm as happy as can be (well I would be if I hadn't watched I Am Legend today haha freaky mutants lol jk).
It's going to be alright, you just have to believe in Him. He isn't an idiot, and miracles of life don't happen to everyone. He let it happen to you; therefore, there must a reason. I think your boyfriend's truly onto something....