I'm in a similar situation, kind of - I all of a sudden have a healthy amount of money that I really don't know what I'm supposed to do with. Except I don't have any debt, and I don't know a thing about investing.
Well, in all honesty I would take the money I would be using for debt and save for a wedding.
I don't feel like I am in any danger to lose my job, so I at least have enough time to save a 6 month cushion. After that a wedding fund begins.
If you plan on getting married, why bother wasting money on a lavish ceremony? Just get the marriage certificate. The money you blow on a ceremony could go towards the first year tuition of your child's college education.