As I understand it you have two alternative courses of action:
The first, and simplest is to break out in strange sores, slowly swell up and then burst open to reveal an alien that was previously gestating in your intestines.
The second, which is slightly more complex, is to start behaving strangely until your spouse believes that you are not the "real you". From that point on you can either meet up with similar people until you are in control of the village, and eventually the world, or meet you nemesis in the form of an FBI agent who finally begins to take the claims of your spouse seriously.
It's up to you...