What have I gotten myself into....

OK, so Josh has gotten in to working out and most recently running. Which I think is great, and quite honestly, I probably should be doing the same. Well, he has decided to run a half marathon...next year, after cruise. Seeing the opportunity for us to do something together, I opened my big mouth and said "hey we should run it together"......well....I cant even run half a mile with out wanting to barf...where did I get the notion that I will EVER be able to run 13.1? That's a LONG way. My husbands knew this...so he says..."Babe....are you sure you want to commit to something like that...its going to be a lot of work, Are you sure your up to it?"
Well...crap. Now I HAVE to...if for no other reason then to make him eat his words. I mean, I got a year....the one we want to do is in Nov...so I should be able to get myself at least in condition enough to where I wont die running the thing....i hope.....