First, how old are you?
Second, are there cultural expectations, as in they want you to marry someone from a specific culture or background?
If so, is she of that culture or background?
Third, are you completely financially independent of your parents? Should you marry this girl, and they cut you off, will you survive financially?
Fourth, how old is she? If she is under 23, I can say with a certain degree of certainty, that she will be very different by the time she is 25.
Fifth, what kind of time frame are you looking at in getting married?
There is no rush to tie the knot, take your time, spend time with each other's parents and really get to know each other. Give up any bad habits you may have and put your best foot forward, and make sure she does the same. Both of you should dress respectfully (no tank tops, ripped shorts, etc).
Best of luck.