Navigating Marriage & Future Family Plans: A Guide for Couples

Question
My girlfriend of 4 years and I would like to get married in the future.  She knows that I'm not too fond of kids and am not sure whether or not I'll want them in the future.  She's a teacher and quite fond of kids and has stated that she will "probably" want them in the future, but she also has had second thoughts about it because she wants to put her career first without distractions.  She has also stated that nobody can truly know what they will want 5-6 years in the future until that point comes, both her and I both.  We would like to get married despite both of are uncertainties because we both love each other and we don't want the numerous hypothetical scenarios that this issue could create to ruin an otherwise happy marriage.  We've agreed, that if there are differences in the future, that we would seek counciling and also sign prenups in case the **** hit the fan.  I really want to go through with it and marry her and I just want to make sure that there is hope that we can somehow last both with or without kids.

Answer
I don't think it is in anyones best interest to figure out what the future will hold. The key to "last" is to be willing to try the partners desires just for the love of it. Having children around age 30 is ideal because you'll have a better idea then, than you do now.

Bill