Wow - I just saw in another thread that you have folks asking you when you are going to have a baby.
So you have one group of people encouraging you to get pregnant right away, and another grup telling you your marriage is going to fail?
Personally, I'd be looking for some new friends.
Yes, you did get married young, but I know of 2 couples (dear friends of mone from high school) who just celebrated their 14th and 19th wedding anniversaries! 1 couple got married right out of high school (no, not pregnant - they had just been sweethearts all through high school and saw no reason to wait) the other couple waited until she finished her college degree and got married 1 week after her graduation.
You might {gently} point out to people that statistics are just that, statistics. And unless someone comes up wth somthing that says 100% - you and your husband have just as much of a chance as any other marriage. More so if people stop pointing out all the negatives and start being behind you guys!