Hiya Bree13...

I agree that families/grandparents don't get a vote... it's your relationship, you and your significant other get to decide whether or not to get married.

That said... I think it's smart to try to understand what their reasons are. Sometimes people have silly reasons, or maybe don't know the other person well enough - but other times they may see something that we miss (love being blind, and all that).

So, if you have a good relationship with any of the people who object, I'd be inclined to ask them calmly why they think marriage is a bad idea. Don't respond or argue, just listen and be open... then go home, reflect, and decide for yourself. (You can always tell them later, "thank you - I appreciate your advice, and your honesty in sharing that with me. I considered it, and decided to go ahead with the wedding.")

The other thing you might consider... if you can find a good counselor... is to do pre-marital counseling. I am not married, but I've heard that it can be really good for discussing some of the big issues that typically cause problems in new marriages.

Whatever you decide, good luck!