Well, it might help to adjust your attitude a little.
In other words, if you are coming to them with the clear attitude or statement that you do not care what anyone else thinks or has to say, it is undoubtedly upping the negativity factor.
If your folks were also teen parents, it's also no wonder they're less than positive, because they likely know what you don't, which is that it is far more difficult, especially in this culture, than parenting even a few short years later. Mind you, that doesn't mean you can't do it, or that that alone should cause you to make a different choice, but rather that acknowledging the experience they had and asking them to share their concerns would likely be helpful, both in getting some harmony AND in really making an informed choice.
Plus, you can't expect your parents to help you out with money or arrangements for this: that really isn't fair, unless you asked them in advance when you chose to become pregnant. So, acknowledging that imbalance might also help out, because you're right, no matter what you choose to do, this is *your* responsibility.
Now, for all I know, you're not bringing to the table what you're saying here, but if you are, again, I'd suggest you reconsider your approach. It might not net you "happy" for some time, but it certainly will likely make things at least not quite so negative.
See what I'm saying?
Editor & Founder, Scarleteen
ST blog • about Heather & Scarleteen
"You have to love women who are brave enough to do things so big in a world where women are supposed to be so small." - Andrea Dworkin