When I think back, I guess the biggest gamble I ever have taken is marrying my husband after only knowing him for under 4 months. I was only 19 and realize now that I didn't really know him. The first time he got angry I was stunned - in the 4 months we dated - he was always in a good mood!!
It worked out just peachy. We have been married for 42 years, have two children and grandchildren---and adore each other. Yes, it worked out, no I would not risk marrying after so little time again. It was a risk that worked out, but wouldn't for everyone, or every time - so no I do not recommend it.